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CGP EDU Academic Team
Published on: September 12, 2026
If a slab of insulating material $4 \times 10^{-3} m$ thick is introduced between the plates of a parallel plate capacitor, the separation between plates has to be increased by $3.5 \times 10^{-3} m$ to restore the capacity to original value. The dielectric constant of the material will be
Text Solution
Verified by ExpertsThe correct answer is:
B
$K = \frac{t}{t - d'} = \frac{4 \times 10^{-3}}{4 \times 10^{-3} - 3.5 \times 10^{-3}} = 8$
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