1. ENC como
lor each
mark,
rding to the instructions given there. Each
A closed surface encloses two equal and opposite charges. The net flux through
the surface is
A. Negative
B.
Zero
Positive
D.
Neutral
Two charges q, and q2 are placed in vacuum at a distance d and fo. ce between
them is F. If a medium of relative permittivity 4 is introduced between therr., then
the new force will be
A.
F/4
В.
F/2
C. 2F
D. 4F
2.
3.
4.
A charged particle moves along a circle under the action of possible electric and
magnetic fields. Which of the following is possible?
A
E=0, B=0
B.
E#O, B=0
C. E=0, B#0
D.
E#0, B#0
Two identical circular loops A and B of a metal wire are placed on a table without
touching each other. Loop A carries a current which increases with time. In
response, the loop B will
A. Remain Stationary
Be attracted by loop A
C. Be repelled by loop A
At what frequency an inductor of 1H will have a reactance of 500 ohms?
A. 80Hz
B.
C. 500Hz
D.
B.
D.
Rotate about centre of mass
5.
SOHz
800 Hz
6.
B.
D.
NmA
VSA
1 Henry=
A. VAS!
C. VSAP
Photon A has twice energy to that of photon B. The ratio of momentum of A and
B is PPB=
A. 2
C. /
7.
B.
D.
1
4​