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

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Electronic Principles
One henry of inductance is defined as:

the amount of counter emf required to reduce a current to 1 A
None of these
the amount of inductance required to change the frequency of a current by 1 Hz
the number of turns of wire in an inductor multiplied by the amount of current flowing through it
the amount of inductance required for generating 1 V of counter emf when the current changes at the rate of 1 A per second

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Electronic Principles
Which one of the following statements best applies to a parallel RLC circuit?

The current waveform for each component always has the same amplitude and phase as the applied current
The voltage waveform for each component always has the same amplitude and phase as the applied voltage
All of these
The sum of the current is always less than the applied current
None of these

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