Electronic Principles
Household light bulbs have a given power rating, and they operate at 120 V. Which one of the following equations most directly provides the current rating of these light bulbs?

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

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

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

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