ECAT Pre Engineering Physics Chapter 14 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 14 Electromagnetism

Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 14 Electromagnetism

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Physics ECAT Pre Engineering Chapter 14 Electromagnetism

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Question # 1

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

Question # 2

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

Question # 3

Flurescent screen is a screen where visible spot

Question # 4

The force acting on a charge moving in a magnetic field

Question # 5

magnetic field is a:

Question # 6

Centripetal force for electron is given by

Question # 7

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

Question # 8

The magnetic field inside a solenoid can be increased by:

Question # 9

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

Question # 10

The CRO is used for displaying the waveform of a given

Question # 11

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

Question # 12

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

Question # 13

Electron gun consist of

Question # 14

The current sensitivity of the galvanometer is

Question # 15

Ammeter is used to measure

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 How many number of anodes used in electron gun
A. one
B. two
C. three
D. six
2 if the field is directed along the normal to the area, then flux is:
A.

Maximum

B.

Equal to zero

C.

Equal to BA

D.

Minimum
3 The vector representation of force experience give the direction of
A. magnetic field
B. current
C. length of conductor
D. force
4 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
5 The galvanometer can be made sensitive if the value of the factor C/BAN is
A. constant
B. small
C. large
D. none of these
6 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
7 Ammeter is used to measure
A. voltage
B. resistance
C. voltage and current
D. current
8 The SI unit of magnetic flux is.
A. weber
B. Nm-1A-1
C. tesla
D. gauss
9 Weber is a unit of
A. magnetic flux
B. magnetic filed intensity
C. magnetic induction
D. magnetic flux density
10 Magnetic induction is also called as:
A.

Ampere’s law

B.

Faraday’s law

C.

Lenz’s law

D.

Newton’s law

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