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

magnetic field is a:

Question # 2

A full-scale deflection is obtained in a galvanometer with a current of few

Question # 3

The unit of magnetic flux is

Question # 4

NmA-1 is commonly called:

Question # 5

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

Question # 6

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

Question # 7

Flurescent screen is a screen where visible spot

Question # 8

In a moving coil galvanometer, the deflecting couple depends upon

Question # 9

Avo-meter is used of measure the

Question # 10

To convert galvanometer into ammeter we connect

Question # 11

The permeability of free space is measured in:

Question # 12

The unit of flux density is also given by

Question # 13

For the conversion of galvanometer into voltmeter, we connect a

Question # 14

The direction of lines of force depends upon the direction of

Question # 15

The angle of deflection of coil can be measured by the

Question # 16

Amperean path is a:

Question # 17

The most suitable material for permanent magnet is

Question # 18

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 # 19

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

Question # 20

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 # 21

The voltage increases linearly with

Question # 22

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

Question # 23

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

Question # 24

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

Question # 25

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

Question # 26

The magnetic field in the middle of a solenoid due to current is

Question # 27

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 # 28

A meter wire carraying a current of 2A is at right angle to the uniform magnetic field of 0.5 Weber/m2The force on the wire is

Question # 29

In a straight current carrying conductor, the direction of magnetic field can be found by

Question # 30

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

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 Hold the solenoid in the right hand with fingers curling in the direction of current. The direction of the field will be given by:
A.

Thumb

B.

Curled fingers

C.

Middle finger

D.

Arm of right hand
2 Weber is a unit of
A. magnetic flux
B. magnetic filed intensity
C. magnetic induction
D. magnetic flux density
3 if the field is directed along the normal to the area, then flux is:
A.

Maximum

B.

Equal to zero

C.

Equal to BA

D.

Minimum
4 A resistance used in galvanometer to make it voltmeter is called
A. shunt resistance
B. high resistance
C. zero resistance
D. none of these
5 A solenoid is a coil of wire which is:
A.

Short, loosely wound, cylindrical

B.

Long, tightly wound, spherical

C.

Long, loosely wound, cylindrical

D.

Long, tightly wound, cylindrical
6 The vector representation of force experience give the direction of
A. magnetic field
B. current
C. length of conductor
D. force
7 The SI unit of magnetic permeability is
A. WB A-1m-1
B. WB mA-1
C. WB Am-1
D. None of these
8 The CRO is used for displaying the waveform of a given
A. current
B. voltage
C. both of them
D. none of them
9 41 The force experience, when proton projected in a magnetic field with velocity 'v' is
A. +e(v x B)
B. -C(V x B)
C. +e2(v x B)
D. -e(v2x B)
10 The CRO deflects the beam of electrons, when they passes through uniform
A. electric field
B. gravitational field
C. magnetic flax
D. magnetic field

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