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प्रश्न
The electric field inside a parallel plate capacitor is E. Find the amount of work done in moving a charge q over a closed loop a b c d a.
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उत्तर
Work done, W= F.d
Here, F is the force exerted on the charge (q) due to electric field (E) and is given by:
F=qE
Net displacement, d = 0
∴ W=0
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