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 long wire wound tightly on a cylindrical core is called:

Question # 2

CRO deflects the beam of

Question # 3

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

Question # 4

Tesla is the unit of

Question # 5

Resistance is measured in

Question # 6

The strength of magnetic field around the current conductor is

Question # 7

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 # 8

A field is uniform and much stronger:

Question # 9

How many number of anodes used in electron gun

Question # 10

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

Question # 11

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

Question # 12

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

Question # 13

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

Question # 14

The SI unit of flux density is

Question # 15

Weber is a unit of

Question # 16

In order to make a voltmeter, high resistance is connected with galvanometer, in

Question # 17

NmA-1 is commonly called:

Question # 18

The gavanometer constant of a moving coil galvanometer is given by

Question # 19

The unit of flux density is also given by

Question # 20

The SI unit of magnetic flux is.

Question # 21

A galvanometer is an instrument used to

Question # 22

Amperean path is a:

Question # 23

if the field is directed along the normal to the area, then flux is:

Question # 24

The vector representation of force experience give the direction of

Question # 25

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

Question # 26

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

Question # 27

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

Question # 28

In the region surrounding a current carrying wire:

Question # 29

The current is measured in

Question # 30

The CRO deflects the beam of electrons, when they passes through uniform

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The most suitable material for permanent magnet is
A. cobalt
B. iron
C. steel
D. alaminium
2 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
3 The e/m of an electron moving in a circular path in a magnetic field is equal to
A. V/Br
B. V/B2r2
C. V2/Br2
D. V2/Br
4 The SI unit of flux density is.
A. Tesla
B. Weber
C. Gaun
D. Weber/meter
5 How many number of anodes used in electron gun
A. one
B. two
C. three
D. six
6 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
7 To convert galvanometer into ammeter we connect
A. small resistance in parallel with galvanometer
B. small resistance in series with galvanometer
C. high resistance in series with galvanometer
D. high resistance in parallel with galvanometer
8 The unit of magnetic flux is
A. Weber-m2
B. Weber-m3
C. Henry
D. Weber
9 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)
10 The magnetic field in the middle of a solenoid due to current is
A. weak
B. strong and uniform
C. none-uniform
D. zero

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