ECAT Pre Computer Science Chapter 14 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 14 Electromagnetism

Try The MCQ's Test For ECAT Physics Chapter 14 Electromagnetism

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ECAT Physics Chapter 14 Electromagnetism

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Question # 1

A field is uniform and much stronger:

Question # 2

Weber is a unit of

Question # 3

When the charged particle is projected at right angles to the field, then experienced by it will be:

Question # 4

A meter wire carraying a current of 2A is at right angle to the uniform magnetic field of 0.5 Weber/m2The force on the wire is

Question # 5

The CRO deflects the beam of electrons, when they passes through uniform

Question # 6

if the field is directed along the normal to the area, then flux is:

Question # 7

A long wire wound tightly on a cylindrical core is called:

Question # 8

Current is measured in

Question # 9

Centripetal force for electron is given by

Question # 10

The torque per unit twist of coil is called

Question # 11

Charge to mass ratio (e/m) of an electron is given by the relation

Question # 12

In the formula B= µ̻ nl, the symbol n denotes:

Question # 13

The field around a moving charge is called

Question # 14

A current carrying conductor is placed at right angle to the magnetic field. The magnetic force experienced by the conductor is

Question # 15

The force experienced by an electron projected in a magnetic field B with a velocity V is given by

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 Galvanometer is a device used for the detection of
A. voltage
B. current
C. temperature
D. pressure
2 The gavanometer constant of a moving coil galvanometer is given by
A. K=BAN/C
B. K=BN/CA
C. K=NAC/B
D. K=C/BAN
3 A current carrying conductor is placed at right angle to the magnetic field. The magnetic force experienced by the conductor is
A. minimum
B. maximum
C. zero
D. none of these
4 The vector representation of force experience give the direction of
A. magnetic field
B. current
C. length of conductor
D. force
5 The working of galvanometer depends upon torque exerted on a current carrying coil in
A. magnetic field
B. electric field
C. gravitational field
D. nuclear field
6 When the waveform of one voltage is increasing and that of second is decreasing and vice versa, then phase difference between these voltage is
A. 90°
B. 75°
C. 0°
D. 180°
7 A long wire wound tightly on a cylindrical core is called:
A. Potentiometer
B. Solenoid
C. Toroid
D. Wheat and stone bridge
8 The force exerted on a conductor of length L, carrying current I when placed in a magnetic field B is given by
A. F=IB/L
B. F= L x B/I
C. F = IL x B
D. F = IL . B
9 A field is uniform and much stronger:
A.

Inside a long solenoid

B.

Outside a long solenoid

C.

At the end of a long solenoid

D.

At the central point of long solenoid
10 The working of all DC electric meters (galvanometers, ammetersand voltmeters) depends upon
A. Heating effect of current
B. Chemical effect of current
C. Magnetic effect of current
D. Electromagnetic effect of current

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