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

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

Question # 3

(CRO) Cathode ray oscilloscope is a device used for high speed

Question # 4

A galvanometer is an instrument used to

Question # 5

Magnetic flux passing through a element whose vector area makes an angle0º with lines of magnetic force is:

Question # 6

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 # 7

The SI unit of magnetic induction is

Question # 8

The gavanometer constant of a moving coil galvanometer is given by

Question # 9

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

Question # 10

magnetic field is a:

Question # 11

The working of galvanometer depends upon torque exerted on a current carrying coil in

Question # 12

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

Question # 13

A beam of electrons is provided by an

Question # 14

F = I(L x B) is a

Question # 15

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

Question # 16

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

Question # 17

Method "lamp and scale arrangement" used to measure the

Question # 18

Weber is a unit of

Question # 19

Magnetic flux and flux density are related by

Question # 20

In a moving coil galvanometer, the deflecting couple depends upon

Question # 21

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

Question # 22

A current carrying conductor is placed at right angle to the magnetic field. The magnetic force experienced by the conductor is

Question # 23

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

Question # 24

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

Question # 25

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

Question # 26

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

Question # 27

NmA-1 is commonly 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

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

Question # 30

Avo-meter is used of measure the

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 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
2 The permeability of free space is measured in:
A. Wb/Am
B. Wb A/m
C. Am/Wb
D. m/Web A
3 The voltage increases linearly with
A. time
B. velocity
C. acceleration
D. torque
4 The straight current carrying conductor experiences maximum force in a uniform magnetic field when it is placed
A. parallel to the field
B. Perpendicular to the field
C. At an angle of 45 to the field
D. None of the above
5 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
6 How many number of anodes used in electron gun
A. one
B. two
C. three
D. six
7 A beam of electrons is provided by an
A. electron gun
B. Suppray
C. Injection
D. None of these
8 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
9 The SI unit of magnetic permeability is
A. WB A-1m-1
B. WB mA-1
C. WB Am-1
D. None of these
10 The SI unit of magnetic flux is
A. NmA-2
B. NmA-1
C. NAm-1
D. Nm2A-1

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