Model Questions for Scientific Assistant (IMD) Exam (Paper-2) PHYSICS - Set 40
Model Questions for Scientific Assistant (IMD) Exam (Paper-2)
PHYSICS - Set 40
Write and Discuss Your Answer with Q.No in Comment Box at the Bottom of Post.
1. Coulomb is the unit of which quantity?
a) Field strength
b) Charge
c) Permittivity
d) Force
2. Coulomb law is employed in
a) Electrostatics
b) Magnetostatics
c) Electromagnetics
d) Maxwell theory
3. Find the force between 2C and -1C separated by a distance 1m in air(in newton).
a) 18 X 106
b) -18 X 106
c) 18 X 10-6
d) -18 X 10-6
4. Two charges 1C and -4C exists in air. What is the direction of force?
a) Away from 1C
b) Away from -4C
c) From 1C to -4C
d) From -4C to 1C
5. Find the force of interaction between 60 stat coulomb and 37.5 stat coulomb spaced 7.5cm apart in transformer oil(er=2.2) in 10-4 N,
a) 8.15
b) 5.18
c) 1.518
d) 1.815
Study Kit for SSC Scientific Assistant (IMD) EXAM 2017
6. brought in contact and separated by 4cm apart, charges are 2nC and -1nC, in ?N.a) 1.44
a) 1.44
b) 2.44
c) 1.404
d) 2.404
7. The Coulomb law is an implication of which law?
a) Ampere law
b) Gauss law
c) Biot Savart law
d) Lenz law
8. Two small diameter 10gm dielectric balls can slide freely on a vertical channel. Each carry a negative charge of 1µC. Find the separation between the balls if the lower ball is restrained from moving.
a) 0.5
b) 0.4
c) 0.3
d) 0.2
9. A charge of 2 X 10-7 C is acted upon by a force of 0.1N. Determine the distance to the other charge of 4.5 X 10-7 C, both the charges are in vacuum.
a) 0.03
b) 0.05
c) 0.07
d) 0.09
10. For a charge Q1, the effect of charge Q2 on Q1 will be,
a) F1 = F2
b) F1 = -F2
c) F1 = F2 = 0
d) F1 and F2 are not equal
