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 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
the amount of inductance required for generating 1 V of counter emf when the current changes at the rate of 1 A per second
None of these

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Electronic Principles
Current is

The 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
An imbalance of electrical charges

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Electronic Principles
When applying a square waveform to a capacitor, the circuit tends to:

None of these
peak the voltage and round off the current waveforms
round off both the voltage and current waveforms
peak both the voltage and current waveforms
peak the current and round off the voltage waveforms

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

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
None of these
The total voltages is equal to the sum of the voltages across the resistance and inductance
The total voltage is less than the sum of the voltages across the resistance and inductance

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