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Question

A square plate of side 2 m contains a charge uniformly distributed over one of its side, such that the surface charge density σ is 10C/m2. The net charge on the square surface is n coulombs, where n is a natural number. The value of n is __.

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Solution

As we know surface charge density σ=chargesurfacearea

Here σ=10C/m2,surfacearea=(length)2=4m2

Charge =σ×surfacearea

=10C/m2×4m2=40C

Implies, n=40.


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