If initial charge on all capacitors were zero, work done by battery in circuit shown is ...........

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2. Electric Potential and Capacitance

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If initial charge on all the capacitors were zero, work done by the battery in the circuit shown is ........... $mJ$

A

$0.2$

B

$200$

C

$0.4$

D

$400$

Solution

(c)

$C_{\text {net }}=4 \,\mu F$

$q=40 \,\mu F$

$W=q V=40 \times 10^{-6} \times 10$

$W=400 \,\mu J$

Standard 12

Physics

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