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

Tesla is the unit of

Question # 2

The voltage increases linearly with

Question # 3

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

Question # 4

Weber is a unit of

Question # 5

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

Question # 6

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

Question # 7

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

Question # 8

Ammeter is used to measure

Question # 9

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

Question # 10

Centripetal force for electron is given by

Question # 11

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

Question # 12

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

Question # 13

The gavanometer constant of a moving coil galvanometer is given by

Question # 14

CRO deflects the beam of

Question # 15

When some compass needles are placed on a card board along a circle with the center at the wire, they will

Question # 16

A galvanometer is an instrument used to

Question # 17

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

Question # 18

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

Question # 19

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

Question # 20

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 # 21

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

Question # 22

When an electron enters in a magnetic field right angle to its motion, the magnitude of its velocity will be

Question # 23

The SI unit of magnetic flux is

Question # 24

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

Question # 25

Avo-meter is used of measure the

Question # 26

A current carrying conductor sets up its own:

Question # 27

The magnetic field inside a solenoid can be increased by:

Question # 28

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

Question # 29

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

Question # 30

Method "lamp and scale arrangement" used to measure the

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 A current carrying conductor is placed at right angle to the magnetic field. The magnetic force experienced by the conductor is
A. minimum
B. maximum
C. zero
D. none of these
2 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
3 The voltage increases linearly with
A. time
B. velocity
C. acceleration
D. torque
4 When a suitable small resistance is put in parallel with the galvanometer coil, it is converted into
A. Voltmeter
B. Avometer
C. Ammeter
D. None of these
5 If the value of galvanometer constant k = C/BAN is made small, the galvanometer can be made
A. Sensitive
B. Accurate
C. Stable
D. None of these
6 The magnetic field in the middle of a solenoid due to current is
A. weak
B. strong and uniform
C. none-uniform
D. zero
7 Flurescent screen is a screen where visible spot
A. vanishes
B. is made
C. becomes small and large
D. none of these
8 The strength of magnetic field around the current conductor is
A. Smaller near the conductor
B. Greater near the conductor
C. Greater at the large distance from the conductor
D. Constant near and away from the conductor
9 Magnetic lines of force:
A.

Cannot intersect at all

B.

Intersect at infinity

C.

Intersect within magnet

D.

Intersect at Neutral Point
10 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

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