ECAT Pre Computer Science Chapter 14 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 14 Electromagnetism

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

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ECAT Physics Chapter 14 Electromagnetism

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Question # 1

Method "lamp and scale arrangement" used to measure the

Question # 2

The SI unit of magnetic induction is

Question # 3

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

Question # 4

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

Question # 5

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

Question # 6

The force acting as one meter length of the conductor placed at right angle to the magnetic field, when one A current is passing through it, defines the

Question # 7

The magnetic field inside a solenoid can be increased by:

Question # 8

Flurescent screen is a screen where visible spot

Question # 9

Amperean path is a:

Question # 10

The gavanometer constant of a moving coil galvanometer is given by

Question # 11

Ammeter is used to measure

Question # 12

The current is measured in

Question # 13

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

Question # 14

How many number of anodes used in electron gun

Question # 15

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

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 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
2 F = I(L x B) is a
A. vector
B. scalar
C. unit vector
D. none of these
3 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
4 Resistance is measured in
A. volts
B. ampere
C. ohm
D. watt
5 Centripetal force for electron is given by
A. mv2/ r
B. mv / r2
C. mv2/ r
D. mr2/ v
6 The force experienced by charged particle is maximum, if it moves
A. parallel to magnetic field
B. perpendicular to magnetic field
C. opposite to the magnetic field
D. none of these
7 In the region surrounding a current carrying wire:
A. A magnetic field is setup

B.

The lines of force are elliptical

C.

Direction of lines of forces depends upon direction of current

D.

Both (A) and (C)
8 The direction of lines of force depends upon the direction of
A. voltage
B. current
C. charges
D. none of these
9 A current carrying conductor sets up its own:
A.

Electric field

B.

Nuclear field

C.

Magnetic field

D.

Both (A) and (C)
10 A beam of electrons is provided by an
A. electron gun
B. Suppray
C. Injection
D. None of these

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