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Topic Question Set

Q 1 :    

The electric field between the two parallel plates of a capacitor of 1.5 μF capacitance drops to one third of its initial value in 6.6 μs when the plates are connected by a thin wire.

The resistance of this wire is __________ Ω. (Given, log 3 = 1.1)                [2024]


(4)     E=QAϵ0⇒E∝Q⇒E=E0e-t/RC

        ⇒t=RClnE0E⇒6.6×10-6=R(1.5×10-6)ln3

       ⇒R=66151ln3=6615×1.1=4Ω