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

Avo-meter is used of measure the

Question # 2

The SI unit of magnetic induction is

Question # 3

The magnetic field outside the solenoid due to current is

Question # 4

For measuring large currents, an ordinary galvanometer cannot be used without proper, then both relates with each other as

Question # 5

Centripetal force for electron is given by

Question # 6

NmA-1 is commonly called:

Question # 7

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

Question # 8

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:

Question # 9

Which one of the following relations is correct?

Question # 10

Electron gun consist of

Question # 11

The most suitable material for permanent magnet is

Question # 12

The force experienced by charged particle is maximum, if it moves

Question # 13

Current is measured in

Question # 14

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

Question # 15

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

Question # 16

The torque per unit twist of coil is called

Question # 17

CRO deflects the beam of

Question # 18

Which is modified form of galvanometer

Question # 19

The SI unit of magnetic flux is.

Question # 20

The SI unit of flux density is

Question # 21

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

Question # 22

The vector representation of force experience give the direction of

Question # 23

The direction of lines of force depends upon the direction of

Question # 24

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

Question # 25

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

Question # 26

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

Question # 27

The magnetic field inside a solenoid can be increased by:

Question # 28

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

Question # 29

The force acting on a charge moving in a magnetic field

Question # 30

Lorentz force is defined as

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 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
2 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
3 The torque per unit twist of coil is called
A. proportionality constant
B. gravitational constant
C. boltzman constant
D. coupling constant
4 Tesla is the unit of
A. Magnetic induction or flux density
B. Magnetic flux
C. Self inductance
D. None of these
5 The magnetic field outside the solenoid due to current is
A. strong
B. zero
C. weak
D. uniform
6 A long wire wound tightly on a cylindrical core is called:
A. Potentiometer
B. Solenoid
C. Toroid
D. Wheat and stone bridge
7 When current passes through a solenoid coil, it behaves like a
A. loop
B. circle
C. bar magnet
D. none of these
8 Total number of turns on 0.15 m length solenoid is 300. the value of n is:
A. Greater than 300
B. Smaller than 300
C. Equal to 300
D. Any of (A) or (B)
9 Magnetic induction is also called as:
A.

Ampere’s law

B.

Faraday’s law

C.

Lenz’s law

D.

Newton’s law
10 The current sensitivity of the galvanometer is
A. C/BAN
B. BAN/C
C. CAN/B
D. CBN/A

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