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

The permeability of free space is measured in:

Question # 2

The field around a moving charge is called

Question # 3

A beam of electrons is provided by an

Question # 4

Avo-meter is used of measure the

Question # 5

Tesla is the unit of

Question # 6

The magnetic force exerted on an electron moving with velocity 'v' at right angle to the magnetic field is given by

Question # 7

Which is modified form of galvanometer

Question # 8

A field is uniform and much stronger:

Question # 9

The torque per unit twist of coil is called

Question # 10

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

Question # 11

The direction of lines of force depends upon the direction of

Question # 12

Galvanometer is a device used for the detection of

Question # 13

magnetic field is a:

Question # 14

The SI unit of magnetic flux is.

Question # 15

The voltage increases linearly with

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 magnetic field is a:
A.

Vector quantity

B.

Scalar quantity

C.

Scalar as well as scalar quantity

D.

Any of (A) or (B)
2 If volume of wire is 'AL' and there are 'n' numbers of charge carriers per unit volume, then the total number of charge carriers are
A. n/AL
B. Al/n
C. nAL
D. nA/L
3 The current sensitivity of the galvanometer is
A. C/BAN
B. BAN/C
C. CAN/B
D. CBN/A
4 The SI unit of magnetic flux is
A. NmA-2
B. NmA-1
C. NAm-1
D. Nm2A-1
5 When an electron enters in a magnetic field right angle to its motion, the magnitude of its velocity will be
A. changed
B. zero
C. unchanged
D. none of these
6 CRO deflects the beam of
A. proton
B. a-particle
C. electron
D. neutron
7 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
A. 5N
B. 4N
C. 1.5N
D. 6N
8 Electron gun consist of
A. three anodes
B. heating cathode
C. three anodes
D. three anodes , heating cathode, grid
9 The SI unit of magnetic flux is.
A. weber
B. Nm-1A-1
C. tesla
D. gauss
10

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

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