1.

Which of the following unit does not represent the unit of power ?(a) ampere/volt  (b) (ampere)2 × ohm (c) joule/second       (d) ampere × volt

Answer»

 (a) ampere/volt

Explanation:

 power = p = voltage × current      • unit – volt × ampere

 power = p = current2 × resistance • unit – (ampere)2­ × ohm

 power = p = (Energy / time)         •  unit = (Joule / second)   



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