Physics Electromagnetism Test Online Preparation Mcqs

Physics Electromagnetism Test Online Preparation Mcqs With Answers Start Below

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Question 1 of 15

1. If the current passing through the a spring then the spring will
A.
B.
C.
D.

Question 1 of 15

Question 2 of 15

2. The magnitude of force experienced by a stationary charged particle in a uniform magnetic field is of
A.
B.
C.
D.

Question 2 of 15

Question 3 of 15

3. A moving coil galvanometer of resistance 100Ω gives half scale deflection for a current of 20mA. What will be the potential difference across it?
A.
B.
C.
D.

Question 3 of 15

Question 4 of 15

4. When a particle of charge q and mass enters a uniform magnetic field B moving with a velocity v perpendicular to the direction for the field, it describes a circular path of radius _____
A.
B.
C.
D.

Question 4 of 15

Question 5 of 15

5. Concave pole faces of the magnet and soft iron cylinder in galvanometer are used to make the field
A.
B.
C.
D.

Question 5 of 15

Question 6 of 15

6. Coil of galvanometer is suspended in a radial magnetic field so that the deflecting torque on the coil is always ________, (in usual symbols)
A.
B.
C.
D.

Question 6 of 15

Question 7 of 15

7. The magnetic force experienced by a charge particle moving in a magnetic field will be minimum when it moves
A.
B.
C.
D.

Question 7 of 15

Question 8 of 15

8. A wheat stone bridge is said to be balanced when ________
A.
B.
C.
D.

Question 8 of 15

Question 9 of 15

9. A particle of mass m charge q and speed V, enters a uniform magnetic field of flux density B. The path of the particle in the field is a circle of radius r. The radius r of the circle is:
A.
B.
C.
D.

Question 9 of 15

Question 10 of 15

10. An electrons enters a region where the electric field E is perpendicular to the magnetic field B. It will suffer no deflection if _________.
A.
B.
C.
D.

Question 10 of 15

Question 11 of 15

11. The charged particle enters the uniform magnetic field in such a way that its initial velocity is not perpendicular to the field, the orbit will be:
A.
B.
C.
D.

Question 11 of 15

Question 12 of 15

12. A magnetic field __________.
A.
B.
C.
D.

Question 12 of 15

Question 13 of 15

13. Value of permeability of free space in SI units is ________
A.
B.
C.
D.

Question 13 of 15

Question 14 of 15

14. A charged particle moving in a magnetic field experiences a resultant force
A.
B.
C.
D.

Question 14 of 15

Question 15 of 15

15. Two parallel wires carrying currents in the opposite directions _________.
A.
B.
C.
D.

Question 15 of 15


 

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