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A conductor ‘A’ with a cavity is given a charge ‘Q’ show that the entire charge must appear on the outer surface of the conductor ?

A conductor ‘A’ with a cavity is given a charge ‘Q’ show that the entire charge must appear on the outer surface of the conductor ?

Grade:12

2 Answers

Arun
25763 Points
one year ago
According to the Gaussian theorem, the charge enclosed by Gaussian surface must be zero as electric field vanishes everywhere inside a conductor. Thus, electric field vanishes inside the cavity. Therefore, charges which are supplied to the conductor reside on its outer surface.
Vikas TU
14149 Points
one year ago
e.g., equal and opposite nature charge -q is induced on inner surface of conductor A at the cavity , when conductor B of charge +q is kept in its cavity.
so, charge on outer surface of conductor is (Q + q1) = (Q + q)

 

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