QJEEM07Ph5059: JEE Main 2007 Physics - Class 12 JEEM07Ph5059 Solution: A battery is used to charge a parallel plate capacitor till the …

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QJEEM07Ph5059: JEE Main 2007 Physics - Class 12 JEEM07Ph5059 Solution: A battery is used to charge a parallel plate capacitor till the …

A battery is used to charge a parallel plate capacitor till the potential difference between the plates becomes equal to the electromotive force of the battery. The ratio of the energy stored in the capacitor and the work done by the battery will be

Multiple Choice Options

A `1/2
B 1
C 2
D `1/4

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Accepted Answer

Required ratio

= \frac{E n e r g y s t o r e d i n c a p a c i t o r}{W o r k d o n e b y t h e b a t t e r y} = \frac{\frac{1}{2} C V^{2}}{C e^{2}}

where

C =

Capacitance of capacitor

V =

Potential difference,

e =

e m f

of battery

= \frac{\frac{1}{2} C e^{2}}{C e^{2}} = \frac{1}{2}

(

as

V = e

)

QJEEM07Ph5059: JEE Main 2007 Physics - Class 12 JEEM07Ph5059 Solution: A battery is used to charge a parallel plate capacitor till the …

Multiple Choice Options

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