Suppose a step-down transformer has a turns ration of 5:1. If the secondary current is 1A rms, what is the primary-current?
Suppose a step-down transformer has a turns ration of 5:1. If the secondary current is 1A rms, what is the primary-current?
Which one of the following statements is true for the voltage in a parallel RL circuit?
Which one of the following statements is true for the voltage in a parallel RL circuit?
Which one of the following is a statement of Kirchhoffs current law?
Which one of the following is a statement of Kirchhoffs current law?
Which one of the following statements regarding ac circuits is correct?
Which one of the following statements regarding ac circuits is correct?
How many types of flow are there in a semiconductor?
How many types of flow are there in a semiconductor?
What is the power dissipation of a resistance that has 24 V dropped across it and 0.25 A flowing through it?
What is the power dissipation of a resistance that has 24 V dropped across it and 0.25 A flowing through it?
A device that converts chemical energy to electrical energy is called a:
A device that converts chemical energy to electrical energy is called a:
A circuit has two different voltage sources that are connected in a series-aiding form. If the sources are rated at 6 V and 9 V, what is the total source voltage?
A circuit has two different voltage sources that are connected in a series-aiding form. If the sources are rated at 6 V and 9 V, what is the total source voltage?
What are the main parts of an atom?
What are the main parts of an atom?
When operating above its resonant frequency, a series RLC circuit has the characteristics of a:
When operating above its resonant frequency, a series RLC circuit has the characteristics of a:
Which one of the following statements is true?
Which one of the following statements is true?
A device that converts thermal energy to electrical energy is called a:
A device that converts thermal energy to electrical energy is called a:
An audio transformer has a turn ratio of 9, What is its impedance ratio?
An audio transformer has a turn ratio of 9, What is its impedance ratio?
When operating below its resonant frequency, a parallel RLC circuit has the characteristics of a:
When operating below its resonant frequency, a parallel RLC circuit has the characteristics of a:
Which one of the following statements is true?
Which one of the following statements is true?
When operating above its resonant frequency, a parallel RLC circuit has the characteristics of a:
When operating above its resonant frequency, a parallel RLC circuit has the characteristics of a:
An ideal voltage source has
An ideal voltage source has
To get the Norton current, you have to
To get the Norton current, you have to
Doubling the operating frequency of a capacitive circuit:
Doubling the operating frequency of a capacitive circuit:
If a load resistance is 1 kW, a stiff voltage source has a resistance of
If a load resistance is 1 kW, a stiff voltage source has a resistance of
An intrinsic semiconductor has some holes in it at room temperature. What causes these holes?
An intrinsic semiconductor has some holes in it at room temperature. What causes these holes?
The south pole of a magnet is the one:
The south pole of a magnet is the one:
Thevenin theorem replaces a complicated circuit facing a load by an
Thevenin theorem replaces a complicated circuit facing a load by an
What is the difference between a conductor and an insulator?
What is the difference between a conductor and an insulator?
Which one of the following statements is true?
Which one of the following statements is true?
Which one of the following statements most accurately reflects the nature of ac power?
Which one of the following statements most accurately reflects the nature of ac power?
Which one of the following statements applies to common, non-rechargeable flashlight batteries?
Which one of the following statements applies to common, non-rechargeable flashlight batteries?
Reducing the amount of current through an inductor:
Reducing the amount of current through an inductor:
The total inductance of a series inductor circuit is:
The total inductance of a series inductor circuit is:
The basic unit of measurement for resistance is the:
The basic unit of measurement for resistance is the:
Suppose the voltage from a power outlet is 120 Vrms. What is the peak voltage?
Suppose the voltage from a power outlet is 120 Vrms. What is the peak voltage?
A step-down transformer has turns ration of 5:1. If the primary voltage is 120 Vrms, what is the secondary voltage?
A step-down transformer has turns ration of 5:1. If the primary voltage is 120 Vrms, what is the secondary voltage?
When a series RLC circuit is operating at its resonant frequency:
When a series RLC circuit is operating at its resonant frequency:
Suppose the peak value of a sinusoidal voltage is 50 V. What is the rms value?
Suppose the peak value of a sinusoidal voltage is 50 V. What is the rms value?
At room temperature an intrinsic silicon crystal acts approximately like
At room temperature an intrinsic silicon crystal acts approximately like
Which one of the following phrases most accurately describes a purely capacitive circuit?
Which one of the following phrases most accurately describes a purely capacitive circuit?
What is the difference between the kinds of charges for an electron and a proton?
What is the difference between the kinds of charges for an electron and a proton?
Which one of the following equations most directly leads to the resistance of an ordinary household light bulb, assuming that you know the power and voltage rating?
Which one of the following equations most directly leads to the resistance of an ordinary household light bulb, assuming that you know the power and voltage rating?
Which one of the following statements applies to common auto batteries?
Which one of the following statements applies to common auto batteries?
What kind of device is a diode?
What kind of device is a diode?
Which one of the following properties of a magnetic circuit can be directly compared to current in an electrical circuit?
Which one of the following properties of a magnetic circuit can be directly compared to current in an electrical circuit?
A circuit has two different voltage sources that are connected in a series-opposing form. If the sources are rated at 6 V and 9 V, what is the total source voltage?
A circuit has two different voltage sources that are connected in a series-opposing form. If the sources are rated at 6 V and 9 V, what is the total source voltage?
When applying a square waveform to a capacitor, the circuit tends to:
When applying a square waveform to a capacitor, the circuit tends to:
The current gain of a transistor is defined as the ratio of the collector current to the
The current gain of a transistor is defined as the ratio of the collector current to the
The saturation point is approximately the same as
The saturation point is approximately the same as
Norton's theorem replaces a complicated circuit facing a load by an
Norton's theorem replaces a complicated circuit facing a load by an
Which one of the following properties of a magnetic circuit can be directly compared to resistance in an electrical circuit?
Which one of the following properties of a magnetic circuit can be directly compared to resistance in an electrical circuit?
Which one of the following statements regarding ac circuits is correct?
Which one of the following statements regarding ac circuits is correct?
A loadstone is:
A loadstone is:
Which is the most widely used semiconductor?
Which is the most widely used semiconductor?
The equivalent of 1 kV is:
The equivalent of 1 kV is:
Which one of the following statements most accurately describes the nature of inductive reactance?
Which one of the following statements most accurately describes the nature of inductive reactance?
Doubling the operating frequency of an inductive circuit:
Doubling the operating frequency of an inductive circuit:
What kind of battery is most likely included in a cordless electric knife?
What kind of battery is most likely included in a cordless electric knife?
A step-up transformer has a turns ratio of 1:4. If the line voltage is 115 V rms, what is the peak secondary voltage?
A step-up transformer has a turns ratio of 1:4. If the line voltage is 115 V rms, what is the peak secondary voltage?
An unloaded zener regulator has a source voltage of 20 V, a series resistance of 330 W, and a zener voltage of 12 V, What is the Zener current?
An unloaded zener regulator has a source voltage of 20 V, a series resistance of 330 W, and a zener voltage of 12 V, What is the Zener current?
The net charge of a neutral copper atom is
The net charge of a neutral copper atom is
What is one important thing transistors do?
What is one important thing transistors do?
What is the total resistance of a parallel circuit that contains two resistors having values of 220 ohm and 470 ohm?
What is the total resistance of a parallel circuit that contains two resistors having values of 220 ohm and 470 ohm?
What causes the depletion layer?
What causes the depletion layer?
Holes act like:
Holes act like:
The peak value of a sine waveform is:
The peak value of a sine waveform is:
The direction of conventional current flow is:
The direction of conventional current flow is:
Which one of the following equations most directly determines the power dissipation of a resistance when you know the power dissipation of a resistance when you know the voltage drop and current?
Which one of the following equations most directly determines the power dissipation of a resistance when you know the power dissipation of a resistance when you know the voltage drop and current?
Positive ions are atoms that have
Positive ions are atoms that have
If the base supply voltage increases, the Q point moves
If the base supply voltage increases, the Q point moves
Which one of the following statements is true?
Which one of the following statements is true?
Which one of the following is most likely used for measuring the rate of electron flow?
Which one of the following is most likely used for measuring the rate of electron flow?
How much current flows through a 0.02 micro F capacitor that is operating from a 12-V ac, 100-Hz source?
How much current flows through a 0.02 micro F capacitor that is operating from a 12-V ac, 100-Hz source?
How many protons does the nucleus of a silicon atom contain?
How many protons does the nucleus of a silicon atom contain?
Which one of the following kinds of materials has the highest permeability?
Which one of the following kinds of materials has the highest permeability?
The barrier potential accross each depletion layer is
The barrier potential accross each depletion layer is
The period of a waveform is:
The period of a waveform is:
The total capacitance of a series capacitor circuit is:
The total capacitance of a series capacitor circuit is:
A transistor has how many doped regions?
A transistor has how many doped regions?
Which one of the following properties of a magnetic circuit can be directly compared to voltage in an electrical circuit?
Which one of the following properties of a magnetic circuit can be directly compared to voltage in an electrical circuit?
Who invented the first junction transistor?
Who invented the first junction transistor?
How much power is being dissipated by a 1000 W resistance that has 25 V applied to it?
How much power is being dissipated by a 1000 W resistance that has 25 V applied to it?
Determine the resistance value and tolerance of a resistor that has the following color bands; first band is red, second band is red, third band is orange, and the fourth band is gold
Determine the resistance value and tolerance of a resistor that has the following color bands; first band is red, second band is red, third band is orange, and the fourth band is gold
Which one of the following statements is true for resistance in a parallel circuit?
Which one of the following statements is true for resistance in a parallel circuit?
What is a free electron?
What is a free electron?
Doubling the operating frequency of a purely inductive circuit:
Doubling the operating frequency of a purely inductive circuit:
A zener diode has a voltage of 10 V and a current of 20 mA. What is the power dissipation?
A zener diode has a voltage of 10 V and a current of 20 mA. What is the power dissipation?
Which one of the following statements is true for voltage in a parallel circuit?
Which one of the following statements is true for voltage in a parallel circuit?
Which one of the following phrasers best describes flux density?
Which one of the following phrasers best describes flux density?
If N1/N2 = 2, and the primary voltage is 120 V, what is the secondary voltage?
If N1/N2 = 2, and the primary voltage is 120 V, what is the secondary voltage?
What is the primary difference between primary and secondary cell batteries?
What is the primary difference between primary and secondary cell batteries?
A low-pass filter:
A low-pass filter:
A typical light switch in your home is a:
A typical light switch in your home is a:
The secondary voltage for a certain power transformer is twice the voltage applied to the primary. The current flowing in the secondary winding will be:
The secondary voltage for a certain power transformer is twice the voltage applied to the primary. The current flowing in the secondary winding will be:
At room temperature an intrinsic semiconductor has
At room temperature an intrinsic semiconductor has
The valence electron of a copper atom experiences what kind of attraction toward the nucleus?
The valence electron of a copper atom experiences what kind of attraction toward the nucleus?
Which one of the following principles best describes the basic operation of a generator?
Which one of the following principles best describes the basic operation of a generator?
How may valence electrons does a silicon atom have?
How may valence electrons does a silicon atom have?
Assuming 100% efficiency, what is the power being applied to the primary winding of the transformer described in the above question?
Assuming 100% efficiency, what is the power being applied to the primary winding of the transformer described in the above question?
The dielectric constant of a material is a measure of:
The dielectric constant of a material is a measure of:
Absolute Zero temperature equals
Absolute Zero temperature equals
A device that converts light energy to electrical energy is called a:
A device that converts light energy to electrical energy is called a:
Doubling the operating frequency of a purely capacitive circuit:
Doubling the operating frequency of a purely capacitive circuit:
Which one of the following statements best applies to a series RLC circuit?
Which one of the following statements best applies to a series RLC circuit?
Suppose a voltage source has an ideal voltage of 15V and a source resistance of 0.2W. For what values of load resistance will the voltage source appear stiff?
Suppose a voltage source has an ideal voltage of 15V and a source resistance of 0.2W. For what values of load resistance will the voltage source appear stiff?
A real voltage source has
A real voltage source has
Inductive reactance is measured in units of:
Inductive reactance is measured in units of:
The total capacitive reactance of a parallel capacitor circuit is:
The total capacitive reactance of a parallel capacitor circuit is:
A circuit has a Norton current of 10 mA and a Norton resistance of 10 kW. What is the Thevenin circuit?
A circuit has a Norton current of 10 mA and a Norton resistance of 10 kW. What is the Thevenin circuit?
The transistor has a current gain of 175. If the base current is 0.1 mA, what is the collector current?
The transistor has a current gain of 175. If the base current is 0.1 mA, what is the collector current?
Which one of the following statements is true for the currents in a series RC circuit?
Which one of the following statements is true for the currents in a series RC circuit?
The voltage across a 1N4001 is 0.93V when the current is 1A. What is the power dissipation of the diode for these values?
The voltage across a 1N4001 is 0.93V when the current is 1A. What is the power dissipation of the diode for these values?
How much current flows through a 60-W light bulb that is operating at 120 V?
How much current flows through a 60-W light bulb that is operating at 120 V?
What is the inductive reactance of a 2-H coil operating at 60 Hz?
What is the inductive reactance of a 2-H coil operating at 60 Hz?
At cut off, the Q point is at
At cut off, the Q point is at
Which one of the following statements is true?
Which one of the following statements is true?
When operating below its resonant frequency, a series RLC circuit has the characteristics of a:
When operating below its resonant frequency, a series RLC circuit has the characteristics of a:
1 Microfarad is the same as:
1 Microfarad is the same as:
What is the phase shift between total current and voltage, if 100 ohm resistor connected in parallel with an inductor that has a reactance of 200W?
What is the phase shift between total current and voltage, if 100 ohm resistor connected in parallel with an inductor that has a reactance of 200W?
To get the Thevenin voltage, you have to
To get the Thevenin voltage, you have to
What is the total resistance of a series circuit that contains four resistors having values of 220W, 470W, 1W, and 1.2W?
What is the total resistance of a series circuit that contains four resistors having values of 220W, 470W, 1W, and 1.2W?
A power transformer steps 100 V down to 10 V. If the current in its primary winding is 2 A, what is the current in the secondary winding?
A power transformer steps 100 V down to 10 V. If the current in its primary winding is 2 A, what is the current in the secondary winding?
The total inductive reactance of a parallel inductor circuit is:
The total inductive reactance of a parallel inductor circuit is:
Which one of the following statements is true?
Which one of the following statements is true?
The emitter diode is usually
The emitter diode is usually
What is the algebraic sum of this series of values:+2, -3, -6,+4?
What is the algebraic sum of this series of values:+2, -3, -6,+4?
