Symbols have their usual meanings for the units of physical quantities. Then Watt is equal to

A Ω

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A^{2} Ω

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A Ω^{2}

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A Ω^{2} s^{- 1}

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Solution

The correct option is B $A^{2} Ω$
Power= $P = I^{2} R$

Writing units on both sides:-
Unit of power is Watt.
Unit of current is Amp.
Unit of resistance is ohm.
$\Rightarrow W a t t = A^{2} Ω$

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