Electronic Principles
Doubling the operating voltage of a purely capacitive circuit:

has no effect on the capacitive reactance
doubles the amount of capacitive reactance
None of these
multiplies the capacitive reactance by 7
cuts the capacitive reactance in half

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Electronic Principles
What is the difference between the kinds of charges for an electron and a proton?

None of these
An electron has a negative charge and a proton has no charge
An electron has a negative charge and a proton has a positive charge
An electron has a positive charge and a proton has no charge
An electron has a positive charge and a proton has a negative charge

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

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
The voltage always has the same amplitude and phase for every part of the circuit
None of these
The total voltage lags the total current by less than 90

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