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

In a straight current carrying conductor, the direction of magnetic field can be found by

Question # 2

To convert galvanometer into ammeter we connect

Question # 3

The current in microamperes required to produce one millimeter deflection on a scale placed one meter away from the mirror of the galvanometer, defined the sensitivity of

Question # 4

magnetic field is a:

Question # 5

The unit of flux density is also given by

Question # 6

Ammeter is used to measure

Question # 7

A voltmeter is used to measure the

Question # 8

the current is pass through the straight wire. The magnetic field established around it has its lines of force:

Question # 9

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

Question # 10

Tesla is the unit of

Question # 11

The torque per unit twist of coil is called

Question # 12

Which is modified form of galvanometer

Question # 13

The magnetic field outside the solenoid due to current is

Question # 14

Hold the solenoid in the right hand with fingers curling in the direction of current. The direction of the field will be given by:

Question # 15

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

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 if the field is directed along the normal to the area, then flux is:
A.

Maximum

B.

Equal to zero

C.

Equal to BA

D.

Minimum
2 The magnetic force exerted on an electron moving with velocity 'v' at right angle to the magnetic field is given by
A. F=eVB
B. F=e2V/B
C. F=e/VB
D. F=B2/ev
3 (CRO) Cathode ray oscilloscope is a device used for high speed
A. velocity
B. graph plotting
C. time-velocity
D. none of these
4 Ammeter is used to measure
A. voltage
B. resistance
C. voltage and current
D. current
5

the current is pass through the straight wire. The magnetic field established around it has its lines of force:
A.

Circular and endless

B.

Oval in shape and endless

C.

Straight

D.

Parabolic
6 Magnetic lines of force:
A.

Cannot intersect at all

B.

Intersect at infinity

C.

Intersect within magnet

D.

Intersect at Neutral Point
7 The magnetic field outside the solenoid due to current is
A. strong
B. zero
C. weak
D. uniform
8 The field around a moving charge is called
A. magnetic field
B. conservative field
C. non-conservative field
D. none of these
9 The force experienced by a single charge carrier moving with velocity 'v' i magnetic field of strength 'B' is given by
A. F =q(v/B)
B. F=q2(v x B)
C. F=q(v x B)
D. F= vx B
10 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°

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