Electronic Principles
Reducing the amount of current through an inductor:

reduces the value of inductance by one-half
None of these
multiplies the value of inductance by two
multiplies the value of inductance by four
has no effect on the inductance

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Electronic Principles
For a pure capacitor:

ac current is converted to dc voltage
ac current and voltage are exactly in phase
None of these
ac current lags the voltage by 90 degree
ac current leads the voltage by 90 degree

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

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