(a)A conductor A with a cavity as shown in Fig. 1.36(a) is given achar

1.	(a)A conductor A with a cavity as shown in Fig. 1.36(a) is given acharge Q.Show that the entire charge must appear on the outer surface of theconductor. (b) Another conductor B with charge qis inserted into the cavity keepingB insulated from A. Show that the total charge on the outside surfaceof A is Q +q [Fig.1.36(b)]. (c) A sensitive instrument is to be shielded from thestrong electrostatic fields in its environment. Suggest a possibleway.
Answer» (a) A conductor A with a cavity as shown in Fig. 1.36(a) is given a charge Q. Show that the entire charge must appear on the outer surface of the conductor. (b) Another conductor B with charge q is inserted into the cavity keeping B insulated from A. Show that the total charge on the outside surface of A is Q + q [Fig. 1.36(b)]. (c) A sensitive instrument is to be shielded from the strong electrostatic fields in its environment. Suggest a possible way.

(a)A conductor A with a cavity as shown in Fig. 1.36(a) is given acharge Q.Show that the entire charge must appear on the outer surface of theconductor. (b) Another conductor B with charge qis inserted into the cavity keepingB insulated from A. Show that the total charge on the outside surfaceof A is Q +q [Fig.1.36(b)]. (c) A sensitive instrument is to be shielded from thestrong electrostatic fields in its environment. Suggest a possibleway.

Answer»

(a)
A conductor A with a cavity as shown in Fig. 1.36(a) is given a
charge Q.
Show that the entire charge must appear on the outer surface of the
conductor. (b) Another conductor B with charge q
is inserted into the cavity keeping
B insulated from A. Show that the total charge on the outside surface
of A is Q +
q [Fig.
1.36(b)]. (c) A sensitive instrument is to be shielded from the
strong electrostatic fields in its environment. Suggest a possible
way.

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