Why surface charge densities of all the plates cant be the same? I mean, suppose +q charge is deposited in plate 2. Then why -q charge will not be induced in plate 1? This happens in case of concentric spheres, so why not here? How to understand when same charge is induced and when not? Does it happen only because plates 1 and 4 are to be maintained at the same potential, or is there some other reason?

subhajit sinha , 12 Years ago

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