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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
25757 Points
2 years 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
2 years 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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