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There could be charge on C, but there is no
1.
net charge on C.
2. There cannot be charge on C.
There could be charge on C and there is net
3.
charge on C.
C
A metal block containing a cavity and car-
rying a net charge –Q is located near a pos-
itive charge +q_as shown in the figure. In
static equilibrium, can there be any charges
on the inner surface C of the cavity?

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