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A conductor with an inner cavity, carries a total charge of +4.20 nC . The charge...

A conductor with an inner cavity, carries a total charge of +4.20 nC . The charge within the cavity, insulated from the conductor, is -6.20 nC . How much charge is on

a)How much charge is on the inner surface of the conductor?

b)How much charge is on the outer surface of the conductor?

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Answer #2

a )

given

total charge of + 4.20 n C = Qnet

insulated from the conductor, is -6.20 n C = Q

here negative charge kept inside the hole initiates an equal positive charge on the inward surface of conductor.

A - 6.20 n C charge is kept inside the cavity it induces + 6.20 n C.

so the charge is on the inner surface of the conductor is + 6.20 n C.

b )

here we have total charge is

Q net = Q c + Q

Q c = Q net - Q

= 4.2 - 6.2

Q c = - 2 n C

so the charge is on the outer surface of the conductor is Q c = - 2 n C.

answered by: anonymous
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