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?

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

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

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

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Electronic Principles
Voltage is

The number of free electrons in an atom
The smallest electrically charged particle
None of these
Trie force that causes electrons to flow
The flow of charged particles through a material

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