In an oscillating LC circuit maximum charge on capacitor is Q . charge on capacitor when energy is s

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1. Electric Charges and Fields

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In an oscillating $LC$ circuit the maximum charge on the capacitor is $Q$. The charge on the capacitor when the energy is stored equally between the electric and magnetic fields is

A

$Q/2$

B

$Q/\sqrt 3 $

C

$Q/\sqrt 2 $

D

$Q$

Solution

$\mathrm{U}_{\mathrm{T}}=\frac{\mathrm{Q}_{0}^{2}}{2 \mathrm{C}}=\mathrm{U}_{0}$

If $\mathrm{U} \longrightarrow \frac{\mathrm{U}_{0}}{2}$

then $Q \rightarrow \frac{Q_{0}}{\sqrt{2}}$

Standard 12

Physics

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