Q.1:
For making a capacitor, it is better to select a dielectric having___________?N
A.
low permittivity
B.high permittivity
C.
permittivity same as that of air
D.
permittivity slightly more than that of air+
Q.2:
The ability of charged bodies to exert force on 6ne another is attributed to the existence of____________?j
A.
electrons
B.
protons
C.
neutrons
D.electric field
Q.3:
The force between two charges is 120 N. If the distance between the charges is doubled, the force will be________________?z
A.
60 N
B.30 N
C.
40 N
D.
15 N
Q.4:
A field line and an equipotential surface are____________?:
A.
always parallel
B.always at 90
C.
inclined at any angle 0
D.
none of the above
Q.5:
The electric field at a point situated at a distance d from straight charged conductor is____________?f
A.
proportional to d
B.inversely proportional to d
C.inversely proportional to d
D.
none of the above
Q.6:
The electric field intensity at a point situated 4 meters from a point charge is 200 N/C. If the distance is reduced to 2 meters, the field intensity will be______________?
A.
400 N/C
B.
600 N/C
C.800 N/C
D.
1200 N/C
Q.7:
The direction of electric field due +0 positive charge is ___________?F
A.away from the charge
B.
towards the charge
C.
both and (6)
D.
none of the above
Q.8:
A capacitor stores 0.24 coulombs at 10 volts. Its capacitance is_____________?N
A.0.024 F
B.
0.12 F
C.
0.6 F
D.
0.8 F
Q.9:
If three 15 uF capacitors are connected in series, the net capacitance isI
A.5 uF
B.
30 uF
C.
45 uF
D.
50 uF
Q.10:
A capacitor stores 0.24 coulombs at 10 volts. Its capacitance is___________?L