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What is the unit of the intensity?

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What is the unit of the intensity?

(a) Watt/m^2

(b) Watt/m

(c) Watt/m^4

(d) Watt/m^3

I got this question at a job interview.

The above asked question is from DC Motors Characteristics topic in section Characteristics of DC & AC Motors of Electric Drives

1 Answer

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Right option is (a) Watt/m^2

For explanation: Intensity is defined as the amount of power incident on a particular area. It is mathematically expressed as I = Power incident (Watt)÷Area(m^2).

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