A car battery is charged by a 12 V supply, and energy stored in it is 7.20 x 105 J. The charge passed through the battery is –

W=qΔV7.20×105J=q×12Vq=7.20×10512=0.6×105Cq=6×104C

A car battery is charged by a 12 V supply, and energy stored in it is 7.20 x 105 J. The charge passed through the battery is –

W=qΔV7.20×105J=q×12Vq=7.20×10512=0.6×105Cq=6×104C

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A car battery is charged by a 12 V supply, and energy stored in it is 7.20 x 10⁵ J. The charge passed through the battery is –

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1.6 x 10⁶ C

5.8 x 10³ J

8.64 x 10⁶ J

6.0 x 10⁴C

answer is A.

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Detailed Solution

$\begin{array}{l} W = qΔV \\ 7 .20 \times 10^{5} J = q \times 12 V \\ q = \frac{7 .20 \times 10^{5}}{12} = 0 .6 \times 10^{5} C \\ q = 6 \times 10^{4} C \end{array}$

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