Electronic Principles
Which one of the following equations most directly determines the power dissipation of a resistance when you know the power dissipation of a resistance when you know the voltage drop and current?

I = P/E
P = IE
P = E2/R
P = I2R
None of these

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

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

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Electronic Principles
Which one of the following principles best describes the basic operation of a generator?

Current is induced in a conductor that is moving through a magnetic field
None of these
Like magnetic poles repel; unlike poles attract
Current flowing through a conductor generates a magnetic field
Like magnetic poles attract; unlike poles repel

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Electronic Principles
Doubling the operating frequency of a purely inductive circuit:

None of these
cuts the current through the inductors one-half
has no effect on the current through the inductors
increases the current, but by an amount that can be determined only by doing a complete analysis of the circuit
doubles the amount of current through the inductors

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