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A,B,C,D are four 'thin', similar metatll...

A,B,C,D are four 'thin', similar metatllic parallel plates, equally separated by distanace d, and connected to a cell of p.d. (V), as shown in Fig.

(i) write the potentials of A,B,C and D.
(ii) If B and C be connected by a wire, then what will b e the potentials of the paltes ? (iii) How will the electric fields ? (iv) Will the charges on the plates A and D change ?

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