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MHT CET 2021 (20 Sep, Shift 1) · Dielectrics

Dielectrics question from MHT CET 2021 (20 Sep, Shift 1)

Q72MHT CET 2021 · 20 SEP · SHIFT 1Easy

Dielectrics

A parallel plate capacitor filled with oil of a dielectric constant 3 between the plates has capacitance 'C'. If the oil is removed, then the capacitance of the capacitor will be

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Answer: (d)

A dielectric filling the gap multiplies capacitance by $K$ : $C = K C_0$ .
With oil, $C = 3C_0 \Rightarrow C_0 = \frac{C}{3}$ .
So the answer is (d) $\frac{C}{3}$ .

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