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 gavanometer constant of a moving coil galvanometer is given by

Question # 2

magnetic field is a:

Question # 3

Method "lamp and scale arrangement" used to measure the

Question # 4

Resistance is measured in

Question # 5

Ammeter is used to measure

Question # 6

The voltage increases linearly with

Question # 7

A resistance used in galvanometer to make it voltmeter is called

Question # 8

A solenoid is a coil of wire which is:

Question # 9

The pointer of a magnetic compass:

Question # 10

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

Question # 11

The angle of deflection of coil can be measured by the

Question # 12

Magnetic lines of force:

Question # 13

A field is uniform and much stronger:

Question # 14

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

Question # 15

The current sensitivity of the galvanometer is

Question # 16

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

Question # 17

The SI unit of magnetic flux is.

Question # 18

To convert galvanometer into ammeter we connect

Question # 19

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

Question # 20

Gauss(G) is smaller unit of magnetic induction which is related to tesla(T) as

Question # 21

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

Question # 22

NmA-1 is commonly called:

Question # 23

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

Question # 24

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

Question # 25

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

Question # 26

The torque per unit twist of coil is called

Question # 27

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

Question # 28

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

Question # 29

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

Question # 30

When current passes through a solenoid coil, it behaves like a

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 A beam of electrons is provided by an
A. electron gun
B. Suppray
C. Injection
D. None of these
2 Electron gun consist of
A. three anodes
B. heating cathode
C. three anodes
D. three anodes , heating cathode, grid
3 The voltage increases linearly with
A. time
B. velocity
C. acceleration
D. torque
4 'K' is the proportionality constant of force experienced by conductor. What is the value of 'K' in SI units?
A. 0
B. 1
C. 0.5
D. -1
5

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

Circular and endless

B.

Oval in shape and endless

C.

Straight

D.

Parabolic
6 A resistance used in voltmeter is called
A. shunt resistance
B. high resistance
C. low resistance
D. zero resistance
7 It is customary represent a current flowing towards the reader by a symbol
A. (x)
B. (+)
C. (.)
D. (-)
8 The force experienced by a single charge carrier moving with velocity 'v' i magnetic field of strength 'B' is given by
A. F =q(v/B)
B. F=q2(v x B)
C. F=q(v x B)
D. F= vx B
9 Magnetic lines of force:
A.

Cannot intersect at all

B.

Intersect at infinity

C.

Intersect within magnet

D.

Intersect at Neutral Point
10 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

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