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(C) Given: Power of the motor $P_{total} = 100\, W$, Time $t = 1\, 	ext{minute} = 60\, 	ext{seconds}$.The power effectively used for stirring the wa

Vedclass · Accepted Answer

$3000$

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(C) Given: Power of the motor $P_{total} = 100\, W$, Time $t = 1\, 	ext{minute} = 60\, 	ext{seconds}$.The power effectively used for stirring the water is $50\%$ of the total power supplied.Power used for stirring $P_{stir} = 50\% 	ext{ of } 100\, W = \frac{50}{100} 	imes 100 = 50\, W$.Work done on the water is calculated using the formula: $	ext{Work} = 	ext{Power} 	imes 	ext{Time}$.$	ext{Work} = 50\, W 	imes 60\, 	ext{s} = 3000\, J$.Therefore, the work done on the water in one minute is $3000\, J$.

An electric motor of power $100\, W$ is used to drive the stirrer in a water bath. If $50\%$ of the energy supplied to the motor is spent in stirring the water, calculate the work done on the water in one minute. (in $J$)

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