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Answer to Question #138829 in Electricity and Magnetism for Rohan
Question #138829
Consider the situation of the previous question. Suppose a charge q is now placed in the cavity.
(a) The electric field outside the conductor is the same as that before placing the charge q in the cavity.
(b) The electric field due to the charge q and that appearing on the surface of the cavity added together is zero at all points in the conductor.
(c) The electric field due to the charge q and that appearing on the surface of the cavity added together is zero at all points outside the conductor.
(d) The electric field at all points in the cavity due to the charge appearing on the outer surface of the conductor is zero.
(e) The charge on the outer surface of the conductor is Q + q
(Note:- This question have one or more than one correct choice(s) out of the four given choices. Any number of options may be correct.)
(a) The electric field outside the conductor is the same as that before placing the charge q in the cavity.
(b) The electric field due to the charge q and that appearing on the surface of the cavity added together is zero at all points in the conductor.
(c) The electric field due to the charge q and that appearing on the surface of the cavity added together is zero at all points outside the conductor.
(d) The electric field at all points in the cavity due to the charge appearing on the outer surface of the conductor is zero.
(e) The charge on the outer surface of the conductor is Q + q
(Note:- This question have one or more than one correct choice(s) out of the four given choices. Any number of options may be correct.)
Expert's answer
Answer. (b) and (e)
(b) The electric field due to the charge q and that appearing on the surface of the cavity added together is zero at all points in the conductor.
(e) The charge on the outer surface of the conductor is Q + q
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