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

The current is measured in

Question # 2

Centripetal force for electron is given by

Question # 3

Tesla is the unit of

Question # 4

The working of all DC electric meters (galvanometers, ammetersand voltmeters) depends upon

Question # 5

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

Question # 6

For the conversion of galvanometer into voltmeter, we connect a

Question # 7

In the region surrounding a current carrying wire:

Question # 8

The field around a moving charge is called

Question # 9

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

Question # 10

The angle of deflection of coil can be measured by the

Question # 11

Ammeter is used to measure

Question # 12

Current is measured in

Question # 13

Charge to mass ratio (e/m) of an electron is given by the relation

Question # 14

CRO deflects the beam of

Question # 15

In the expression of force experienced by electron, the direction of both v and B are

Question # 16

The magnetic field outside the solenoid due to current is

Question # 17

A current carrying conductor sets up its own:

Question # 18

A voltmeter is used to measure the

Question # 19

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

Question # 20

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

Question # 21

The CRO is used for displaying the waveform of a given

Question # 22

Method "lamp and scale arrangement" used to measure the

Question # 23

Avo-meter is used of measure the

Question # 24

Magnetic induction is also called as:

Question # 25

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 # 26

A solenoid is a coil of wire which is:

Question # 27

The unit of flux density is also given by

Question # 28

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

Question # 29

A field is uniform and much stronger:

Question # 30

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

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The magnetic field inside a solenoid can be increased by:
A. Increasing n
B. Decreasing I
C. Increasing I
D. By using iron core within solenoid
2 Galvanometer is a device used for the detection of
A. voltage
B. current
C. temperature
D. pressure
3 Which one of the following relations is correct?
A. 1 Wb-m2= Nm-1A-1
B. 1 tesla = 104 gausses
C. 1 Wb-m2= 1 tesla
D. All of the above
4 Resistance is measured in
A. volts
B. ampere
C. ohm
D. watt
5 In a moving coil galvanometer, the deflecting couple depends upon
A. area of the coil
B. number of turns of coil
C. value of magnetic field
D. all of the above
6 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
A. 5N
B. 4N
C. 1.5N
D. 6N
7 The voltage increases linearly with
A. time
B. velocity
C. acceleration
D. torque
8 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
A. F = B2
B. F = 0
C. F = B
D. F = B/2
9 The SI unit of magnetic induction is
A. Gauses
B. Tesla
C. Weber
D. Weber2
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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