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?

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

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Electronic Principles
Which one of the following is a direct statement of Ohm's law?

None of these
The voltage drop across a resistance is proportional to the value of resistance and the amount of current flowing through it
The total resistance of a parallel circuit is less than the value of the smallest resistance
The algebraic sum of currents entering and leaving a point is equal to zero
The algebraic sum of voltages in a loop is equal to zero

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