MCQ GAUSS'S Theorem contd..

1). A spherical conductor (neutral) is having two cavities A and B .Two point charges q1 and q2 are placed at the centre of cavities A and B respectively. Another point charge q3 is placed at a distance r (> R) from centre of conductor.For this situation Mark the correct statement(s). a) the electric force experienced by q1 and q2 is zero. b) the electric force experienced by q3 is non-zero. c)the charge on the outer surface of conductor is q1+q2 and is non-uniformly distributed. d) all of the above 2) An uncharged conducting thin square plate of side 1m is placed in uniform electric field of magnitude 200 N/C. Mark out the correct statement(s) a) the net charge on each face is zero. b) the net charge on each face of the plate is non- zero and having magnitude equal to 1.77 x 10^-9C c) the net field intensity inside the plate is zero. d)field intensity at the surface of plate is discontinuous while potential is continuous q 1 q 2 q 3