ElectrostaticsHard

Question

Two large vertical and parallel metal plates having a separation of 1 cm are connected to a DC voltagesource of potential difference X. A proton is released at rest midway between the two plates. It is found tomove at 450 to the vertical JUST after release. Then X is nearly

Options

A.1 × 10-5 V
B.1 × 10-7 V
C.1 × 10-9 V
D.1 × 10-10 V

Solution

qE = mg
q(V/d) = mg


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