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Electrical Engineering Questions and Answers


Electrical Engineering Questions and Answers


1)

Watt's law states the relationships of power to energy.

Answer: Option B

Explanation:

Watt's law gives relationship between power to current, voltage and resistance.
2)

Energy is equal to power multiplied by voltage.

Answer: Option B

Explanation:

Energy = Power*Time (not multiply by voltage).

P = VI.
P = (V^2)/R.
P = (I^2)*R.
3)

The capacity of a battery is measured in milliamperes.

Answer: Option B

Explanation:

Battery capacity is measured in ampere-hours (amp-hours)
4)

The power rating of a resistor determines the minimum power that it can handle safely

Answer: Option B
5)

The joule is a unit of energy.

Answer: Option A

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