A fan of power $550 W$ works for $3 h o u r s$ . Calculate the energy consumed.

$2 k W h$

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$1.5 k W h$

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$1.65 k W h$

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$2.5 k W h$

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Solution

The correct option is C
$1.65 k W h$

Given:
Power = $550 W a t t$
Time for which the device is operated = $3 h o u r s$
Energy consumed (in $k W h$ ) = $\frac{P o w e r (W a t t) \times t i m e (h o u r)}{1000} = \frac{550 W a t t \times 3 h o u r s}{1000}$
$= \frac{1650}{1000} = 1.65 k W h$

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A fan of power 550 W works for 3 hours. Calculate the energy consumed.

The correct option is C 1.65 kWh Given: Power = 550 Watt Time for which the device is operated = 3 hours Energy consumed (in kWh) = Power(Watt)×time(hour)1000=550 Watt×3 hours1000 =16501000=1.65 kWh

A fan of power $550 W$ works for $3 h o u r s$ . Calculate the energy consumed.

The correct option is C
$1.65 k W h$

Given:
Power = $550 W a t t$
Time for which the device is operated = $3 h o u r s$
Energy consumed (in $k W h$ ) = $\frac{P o w e r (W a t t) \times t i m e (h o u r)}{1000} = \frac{550 W a t t \times 3 h o u r s}{1000}$
$= \frac{1650}{1000} = 1.65 k W h$