Question

pls answer this question with solution...
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Answer 1

Capacitance C = εA / d

If a metal sheet of thickness d/2 is introduced between the plates,

C' = ε A / d - t(1-1/K)

Here, K = infinity (for any conductor) and t = d/2 (given)

So C' = εA / d - d/2

C' = 2εA / d