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

Resistance is measured in

Question # 2

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

Question # 3

Hold the solenoid in the right hand with fingers curling in the direction of current. The direction of the field will be given by:

Question # 4

The current sensitivity of the galvanometer is

Question # 5

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

Question # 6

The angle of deflection of coil can be measured by the

Question # 7

If current through conductor is 1 A and length of conductor is 1m placed at right angle to the magnetic field, then the strength of magnetic field is

Question # 8

The field around a moving charge is called

Question # 9

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

Question # 10

A voltmeter is used to measure the

Question # 11

A beam of electrons is provided by an

Question # 12

The direction of lines of force depends upon the direction of

Question # 13

Electron gun consist of

Question # 14

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 # 15

The force exerted on a conductor of length L, carrying current I when placed in a magnetic field B is given by

Question # 16

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

Question # 17

The unit of flux density is also given by

Question # 18

A shunt resistance parallel to the galvanometer is used to convert it into

Question # 19

NmA-1 is commonly called:

Question # 20

The current is measured in

Question # 21

The gavanometer constant of a moving coil galvanometer is given by

Question # 22

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

Question # 23

The most suitable material for permanent magnet is

Question # 24

It is customary represent a current flowing towards the reader by a symbol

Question # 25

Avo-meter is used of measure the

Question # 26

F = I(L x B) is a

Question # 27

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

Question # 28

Magnetic lines of force:

Question # 29

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

Question # 30

The permeability of free space is measured in:

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 Current is measured in
A. volts
B. watt
C. ohm
D. ampere
2 The SI unit of flux density is.
A. Tesla
B. Weber
C. Gaun
D. Weber/meter
3 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
A. magnetic flux
B. magnetic induction
C. magnetic field
D. self inductance
4 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
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 CRO is used for displaying the waveform of a given
A. current
B. voltage
C. both of them
D. none of them
7 The galvanometer can be made sensitive if the value of the factor C/BAN is
A. constant
B. small
C. large
D. none of these
8 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
9 Which is modified form of galvanometer
A. potentiometer
B. battery
C. voltmeter
D. slide wire bridge
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
A. dead beat galvanometer
B. stable galvanometer
C. shunt galvanometer
D. sensitive galvanomter

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