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

Galvanometer is a device used for the detection of

Question # 2

The SI unit of magnetic induction is tesla which is equal to

Question # 3

The SI unit of magnetic flux is

Question # 4

A charged particle moving at right angle to the magnetic field will experience

Question # 5

A magnetic force on an electron travelling with 108ms-1parallel to a field of strength 1 Wb m-2is

Question # 6

A solenoid is a coil of wire which is:

Question # 7

Current is measured in

Question # 8

The CRO is used for displaying the waveform of a given

Question # 9

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 # 10

A galvanometer in which the coil comes to rest quickly after the current passed through it, or the current stopped form flowing through it, is called

Question # 11

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

Question # 12

Which one of the following relations is correct?

Question # 13

Lorentz force is defined as

Question # 14

NmA-1 is commonly called:

Question # 15

When a suitable small resistance is put in parallel with the galvanometer coil, it is converted into

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The voltage increases linearly with
A. time
B. velocity
C. acceleration
D. torque
2 The magnetic field in the middle of a solenoid due to current is
A. weak
B. strong and uniform
C. none-uniform
D. zero
3 Charge to mass ratio (e/m) of an electron is given by the relation
A. e/m = 2V/Br2
B. e/m = 2V/B2r
C. e/m = 2V/B2r2
D. e/m = V/2B2r2
4 The strength of magnetic field around the current conductor is
A. Smaller near the conductor
B. Greater near the conductor
C. Greater at the large distance from the conductor
D. Constant near and away from the conductor
5 The angle of deflection of coil can be measured by the
A. one method
B. three method
C. two method
D. none of these
6 NmA-1 is commonly called:
A. Weber
B. Apmere
C. Guass
D. Coulomb
7 The permeability of free space is measured in:
A. Wb/Am
B. Wb A/m
C. Am/Wb
D. m/Web A
8 Lorentz force is defined as
A. q(E + V x B)
B. q(E x B + V)
C. q(E x V + B)
D. q(E x B)
9 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
10 The e/m of an electron moving in a circular path in a magnetic field is equal to
A. V/Br
B. V/B2r2
C. V2/Br2
D. V2/Br

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