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

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 # 2

The permeability of free space is measured in:

Question # 3

The force experienced by charged particle is maximum, if it moves

Question # 4

For measuring large currents, an ordinary galvanometer cannot be used without proper, then both relates with each other as

Question # 5

The most suitable material for permanent magnet is

Question # 6

The straight current carrying conductor experiences maximum force in a uniform magnetic field when it is placed

Question # 7

A voltmeter is used to measure the

Question # 8

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

Question # 9

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

Question # 10

Magnetic flux passing through the an element of are A placed perpendicular to a uniform magnetic field Bis:

Question # 11

The galvanometer can be made sensitive if the value of the factor C/BAN is

Question # 12

Lorentz force is defined as

Question # 13

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

Question # 14

The strength of magnetic field around the current conductor is

Question # 15

The current is measured in

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The force experienced by an electron projected in a magnetic field B with a velocity V is given by
A. F=e(V x B)
B. F= -e(V x B)
C. F= e(B x V)
D. Both a and c
2 In a moving coil galvanometer, the deflecting couple depends upon
A. area of the coil
B. number of turns of coil
C. value of magnetic field
D. all of the above
3 The direction of lines of force depends upon the direction of
A. voltage
B. current
C. charges
D. none of these
4 The total number of lines of magnetic induction pasing through a surface perpendicular to the magnetic field is called
A. magnetic flux
B. magnetic flux density
C. magnetic induction
D. magnetic field intensity
5 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
6 Weber is a unit of
A. magnetic flux
B. magnetic filed intensity
C. magnetic induction
D. magnetic flux density
7 Magnetic flux passing through the an element of are A placed perpendicular to a uniform magnetic field Bis:
A. Maximum
B. Minimum
C. Zero
D. Very small
8 A magnetic force on an electron travelling with 108ms-1parallel to a field of strength 1 Wb m-2is
A. Zero
B. 105 m
C. 10-10N
D. 108N
9 The torque per unit twist of coil is called
A. proportionality constant
B. gravitational constant
C. boltzman constant
D. coupling constant
10 A charged particle moving at right angle to the magnetic field will experience
A. minimum force
B. maximum force
C. zero
D. moderate force

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