ECAT Pre General Science Physics Chapter 14 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 14 Electromagnetism

Try The MCQ's Test For ECAT Pre General Science Physics Chapter 14 Electromagnetism

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ECAT Pre General Science Physics Chapter 14 Electromagnetism

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Question # 1

The force experienced by an electron projected in a magnetic field B with a velocity V is given by

Question # 2

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 # 3

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

Question # 4

The SI unit of magnetic permeability is

Question # 5

When some compass needles are placed on a card board along a circle with the center at the wire, they will

Question # 6

The permeability of free space is measured in:

Question # 7

The SI unit of magnetic flux is

Question # 8

The SI unit of flux density is.

Question # 9

A beam of electrons is provided by an

Question # 10

The SI unit of magnetic induction is

Question # 11

The strength of magnetic field around the current conductor is

Question # 12

magnetic field is a:

Question # 13

Amperean path is a:

Question # 14

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

Question # 15

In a moving coil galvanometer, the deflecting couple depends upon

Question # 16

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

Question # 17

Electron gun consist of

Question # 18

When the charged particle is projected at right angles to the field, then experienced by it will be:

Question # 19

A resistance used in voltmeter is called

Question # 20

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

Question # 21

The force acting as one meter length of the conductor placed at right angle to the magnetic field, when one A current is passing through it, defines the

Question # 22

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

Question # 23

The direction of lines of force depends upon the direction of

Question # 24

41 The force experience, when proton projected in a magnetic field with velocity 'v' is

Question # 25

Magnetic lines of force:

Question # 26

Current is measured in

Question # 27

A voltmeter is used to measure the

Question # 28

Magnetic induction is also called as:

Question # 29

NmA-1 is commonly called:

Question # 30

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

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 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
2 The direction of lines of force depends upon the direction of
A. voltage
B. current
C. charges
D. none of these
3 The vector representation of force experience give the direction of
A. magnetic field
B. current
C. length of conductor
D. force
4 Magnetic flux passing through a element whose vector area makes an angle0º with lines of magnetic force is:
A. BACosѲ

B. Zero
C. BA
D. BA sinѲ
5 magnetic field is a:
A.

Vector quantity

B.

Scalar quantity

C.

Scalar as well as scalar quantity

D.

Any of (A) or (B)
6 It is customary represent a current flowing towards the reader by a symbol
A. (x)
B. (+)
C. (.)
D. (-)
7 At a given instant, a photon moves in +x direction in a region where there magnetic field in -z direction. The magnetic force on the proton will be the:
A. -y direction
B. +y direction
C. +z direction
D. -z direction
8 The SI unit of magnetic induction is
A. Gauses
B. Tesla
C. Weber
D. Weber2
9 The permeability of free space is measured in:
A. Wb/Am
B. Wb A/m
C. Am/Wb
D. m/Web A
10 In the expression of force experienced by electron, the direction of both v and B are
A. parallel
B. zero
C. perpendicular
D. none of them

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