A parallel-plate capacitor is charged to a certain potential difference. A slab of 3 mm thickness is inserted between the plates, and it becomes neces
A parallel-plate capacitor is charged to a certain potential difference. A slab of 3 mm thickness is inserted between the plates, and it becomes necessary to increase the distance between them by 2.3 mm to maintain the same p.d. Find the dielectric coefficient of the slab.
[Hint: See examples 3]
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