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MHT CET 2026 (19 Apr, Shift 2) · Dielectrics

Dielectrics question from MHT CET 2026 (19 Apr, Shift 2)

Q1MHT CET 2026 · 19 APR · SHIFT 2Easy

Dielectrics

A parallel plate air capacitor has capacity 'C' farad, potential 'V' volt and energy 'E' joule. When the gap between the plates is completely filled with dielectric

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Answer: (d)

Charge on the plates stays the same (no battery connected); $C \to KC$ .
$V = \frac{Q}{C} \to \frac{V}{K}$ , decreases.
$E = \frac{Q^2}{2C} \to \frac{E}{K}$ , decreases.
So the answer is (d) both V and E decrease.

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