Amount of energy used in the passage of $1 a m p$ current for $100 s e c$ under a potential of $115 V$ is:

20 k J

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11.5 k J

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115 k J

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0.115 k J

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Solution

The correct option is D $11.5 k J$
$Q = I \times t$
$Q = 1 \times 100$

$Q = 100 C$
Now,
$E n e r g y = c h a r g e \times p o t e n t i a l$
$E n e r g y = 100 \times 115$

$E n e r g y = 11500 J$

$E n e r g y = 11.5 k J$ .

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