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 relationship between Gauses of magnetic induction and Tesla(T) is given by

Question # 2

Avo-meter is used of measure the

Question # 3

The unit of flux density is also given by

Question # 4

Lorentz force is defined as

Question # 5

'K' is the proportionality constant of force experienced by conductor. What is the value of 'K' in SI units?

Question # 6

The current sensitivity of the galvanometer is

Question # 7

The field around a moving charge is called

Question # 8

magnetic field is a:

Question # 9

Method "lamp and scale arrangement" used to measure the

Question # 10

If the value of galvanometer constant k = C/BAN is made small, the galvanometer can be made

Question # 11

The most suitable material for permanent magnet is

Question # 12

The e/m of an electron moving in a circular path in a magnetic field is equal to

Question # 13

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

Question # 14

If the number of turns of a solenoid (carrying a steady current I) is doubled without changing the length of a solenoid, then magnetic field:

Question # 15

To convert galvanometer into ammeter we connect

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The SI unit of flux density is.
A. Tesla
B. Weber
C. Gaun
D. Weber/meter
2 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)
3 The permeability of free space is measured in:
A. Wb/Am
B. Wb A/m
C. Am/Wb
D. m/Web A
4 The SI unit of magnetic flux is.
A. weber
B. Nm-1A-1
C. tesla
D. gauss
5 When the charged particle is projected at right angles to the field, then experienced by it will be:
A. Maximum
B. Zero
C. qvB
D. Both (A) and (B)
6 The magnetic field in the middle of a solenoid due to current is
A. weak
B. strong and uniform
C. none-uniform
D. zero
7 41 The force experience, when proton projected in a magnetic field with velocity 'v' is
A. +e(v x B)
B. -C(V x B)
C. +e2(v x B)
D. -e(v2x B)
8 Galvanometer is a device used for the detection of
A. voltage
B. current
C. temperature
D. pressure
9 The torque per unit twist of coil is called
A. proportionality constant
B. gravitational constant
C. boltzman constant
D. coupling constant
10 A beam of electrons is provided by an
A. electron gun
B. Suppray
C. Injection
D. None of these

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