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Question

An electric bulb of resistance $480 Ω$ is connected to $220 V$ . Find electric energy consumed in $10 s$ .
$1000 J$
$9600 J$
$1008.3 J$
$1118.7 J$

A

9600 J

B

1000 J

C

1008.3 J

D

1118.7 J

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Solution

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Given,
$R = 480 Ω V = 220 V t = 10 s$

$E = \frac{V^{2} t}{R}$

$E = \frac{{(200)}^{2} \times 10}{480} = 1008.3 J$

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