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 gavanometer constant of a moving coil galvanometer is given by

Question # 2

Magnetic flux and flux density are related by

Question # 3

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

Question # 4

Centripetal force for electron is given by

Question # 5

When current passes through a solenoid coil, it behaves like a

Question # 6

Strength of magnetic field is measured in SI units, in:

Question # 7

The unit of magnetic flux is

Question # 8

Gauss(G) is smaller unit of magnetic induction which is related to tesla(T) as

Question # 9

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

Question # 10

Magnetic flux passing through a element whose vector area makes an angle0º with lines of magnetic force is:

Question # 11

Total number of turns on 0.15 m length solenoid is 300. the value of n is:

Question # 12

The voltage increases linearly with

Question # 13

Which one of the following relations is correct?

Question # 14

Weber is a unit of

Question # 15

A field is uniform and much stronger:

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 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
2 The current sensitivity of the galvanometer is
A. C/BAN
B. BAN/C
C. CAN/B
D. CBN/A
3 The angle of deflection of coil can be measured by the
A. one method
B. three method
C. two method
D. none of these
4 If the value of galvanometer constant k = C/BAN is made small, the galvanometer can be made
A. Sensitive
B. Accurate
C. Stable
D. None of these
5 The voltage increases linearly with
A. time
B. velocity
C. acceleration
D. torque
6 Magnetic induction is also called as:
A.

Ampere’s law

B.

Faraday’s law

C.

Lenz’s law

D.

Newton’s law
7 Magnetic flux and flux density are related by
A. Flux density = flux x area
B. Flux density = flux / area
C. Flux density = flux - area
D. None of these
8 CRO deflects the beam of
A. proton
B. a-particle
C. electron
D. neutron
9 The sources of magnetic field are
A. isolated magnetic poles
B. charges at rest
C. charges in motion
D. none of these
10 Galvanometer is a device used for the detection of
A. voltage
B. current
C. temperature
D. pressure

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