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MHT CET 2026 (12 May, Shift 1) · Dielectrics

Dielectrics question from MHT CET 2026 (12 May, Shift 1)

Q6MHT CET 2026 · 12 MAY · SHIFT 1Easy

Dielectrics

A parallel plate air capacitor consists of two metal plates of area $A$ and separation $d$ . A slab of thickness $t$ and dielectric constant $2k$ is inserted between the plates with its faces parallel to the plates. The effective capacitance of the system is ( $\epsilon_0 =$ permittivity of free space)

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Answer: (a)

Slab of thickness $t$ and constant $K$ : $C = \frac{\epsilon_0 A}{(d-t) + \frac{t}{K}}$ .
Here $K = 2k$ , so $C = \frac{\epsilon_0 A}{(d-t) + \frac{t}{2k}}$ .
So the answer is (a).

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