Electronic Principles
Voltage is

Trie force that causes electrons to flow
The number of free electrons in an atom
The flow of charged particles through a material
None of these
The smallest electrically charged particle

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Electronic Principles
One henry of inductance is defined as:

the amount of inductance required to change the frequency of a current by 1 Hz
the amount of inductance required for generating 1 V of counter emf when the current changes at the rate of 1 A per second
the number of turns of wire in an inductor multiplied by the amount of current flowing through it
the amount of counter emf required to reduce a current to 1 A
None of these

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Electronic Principles
Which one of the following statements most accurately describes the nature of inductive reactance?

None of these
Inductive reactance is an opposition to current flow in dc circuits
Inductive reactance is an opposition to current flow in ac circuits
Inductive reactance is another term for counter emf
Inductive reactance is a force that tends to overcome the effects of counter emf

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Electronic Principles
Which one of the following statements is true for the voltage in a parallel RL circuit?

The total voltage is equal to the sum of the voltages across the resistance and inductance
The total voltage lags the total current by less than 90
The voltage always has the same amplitude and phase for every part of the circuit
The total voltages is less than the sum of the voltages across the resistance and inductance
None of these

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Electronic Principles
Which one of the following statements is true for voltage in a series circuit?

The total voltage in a series circuit is equal to the average value of the individual voltages
The total voltage of a series circuit is equal to the total current divided by the total resistance
The total voltage in a series circuit is always less than the value of the smallest voltage
The total voltage is equal to the sum of the individual voltages in a series circuit
None of these

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