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Mechanism of Carrier Conduction

A charge Q is...

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A charge Q is uniformly distributed over a large square plate of copper. The electric field at a point very close to the centre of the plate is 10 V/m. If the copper plate is replaced by a plastic plate of the same geometrical dimensions and carrying the same charge Q uniformly distributed, then the electric field at the point P will be :- (1) 5 V/m (2) Zero (3) 10 V/m (4) 20 V/m

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Q. A charge Q is uniformly distributed over a large plastic plate. The electric field at a point P close to the centre of the plate is 10 V m⁻¹. If the plastic plate is replaced by a copper plate of the same geometrical dimensions and carrying the same charge Q, the electric field at the point P will become
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Mechanism of Carrier Conduction

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