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

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

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Electronic Principles
What is a free electron?

An electron that costs nothing
None of these
An electron that has been freed from its parent atom
An electron that has no electrical charge
An electron that has twice the amount of charge of a normal electron

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