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

A voltmeter is used to measure the

Question # 2

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

Question # 3

Which one of the following relations is correct?

Question # 4

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 # 5

The force experienced by a single charge carrier moving with velocity 'v' i magnetic field of strength 'B' is given by

Question # 6

For the conversion of galvanometer into voltmeter, we connect a

Question # 7

To convert galvanometer into ammeter we connect

Question # 8

Magnetic induction is also called as:

Question # 9

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

Question # 10

The total number of lines of magnetic induction pasing through a surface perpendicular to the magnetic field is called

Question # 11

The pointer of a magnetic compass:

Question # 12

Amperean path is a:

Question # 13

Resistance is measured in

Question # 14

Avo-meter is used of measure the

Question # 15

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

Question # 16

The angle of deflection of coil can be measured by the

Question # 17

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

Question # 18

The SI unit of magnetic permeability is

Question # 19

In the region surrounding a current carrying wire:

Question # 20

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

Question # 21

The permeability of free space is measured in:

Question # 22

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 # 23

The vector representation of force experience give the direction of

Question # 24

magnetic field is a:

Question # 25

Weber is a unit of

Question # 26

The voltage increases linearly with

Question # 27

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

Question # 28

The current sensitivity of the galvanometer is

Question # 29

When charged particle is projected perpendicular to a uniform magnetic field its trajectory is

Question # 30

The SI unit of magnetic flux is.

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The SI unit of magnetic flux is
A. NmA-2
B. NmA-1
C. NAm-1
D. Nm2A-1
2 Tesla is the unit of
A. Magnetic induction or flux density
B. Magnetic flux
C. Self inductance
D. None of these
3 In order to make a voltmeter, high resistance is connected with galvanometer, in
A. perpendicular
B. may be paralled or pendicular
C. series
D. none of these
4 For measuring large currents, an ordinary galvanometer cannot be used without proper, then both relates with each other as
A. modification
B. voltage
C. current
D. resistance
5 A field is uniform and much stronger:
A.

Inside a long solenoid

B.

Outside a long solenoid

C.

At the end of a long solenoid

D.

At the central point of long solenoid
6 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
A. ammeter
B. voltmeter
C. galvanometer
D. avo-meter
7 How many number of anodes used in electron gun
A. one
B. two
C. three
D. six
8 A beam of electrons is provided by an
A. electron gun
B. Suppray
C. Injection
D. None of these
9 Strength of magnetic field is measured in SI units, in:
A. N
B. N/Am
C. Am/N
D. Nm/A
10 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
A. n/AL
B. Al/n
C. nAL
D. nA/L

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