Q 1242556433.     A leaky parallel plate capacitor is filled completely with a material having dielectric constant `K = 5` and electrical conductivity `σ = 7.4 × 10^-12 m^-1`. If the charge on the capacitor at instant `t = 0` is `q = 8.85` μC, then calculate the leakage current at the instant `t = 12` s.

JEE 1997
A

`0.198` μA

B

`0.90` μA

C

`0.276` μA

D

`1.12` μA

HINT

`i = (−(dq)/(dt))`

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