Electronic Principles
A farad is defined as the amount of capacitance necessary for:

storing 1 V for 1 second
dissipating 1 W of power
None of these
changing the voltage on the plates at the rate of 1 V per second when 1 A of current is flowing
causing an ac phase shift greater than 90 degree

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Electronic Principles
Which one of the following phrases most accurately describes a purely inductive circuit?

The ac voltage lags the current by 90 degree
Combinations of resistance and inductive reactance provide any opposition to current flow
None of these
Resistances provide the only opposition to current flow
Inductive reactance provides the only opposition to current flow

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