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

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

Question # 2

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

Question # 3

The strength of magnetic field around the current conductor is

Question # 4

A current carrying conductor sets up its own:

Question # 5

Flurescent screen is a screen where visible spot

Question # 6

Method "lamp and scale arrangement" used to measure the

Question # 7

The field around a moving charge is called

Question # 8

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

Question # 9

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

Question # 10

A current carrying conductor is placed at right angle to the magnetic field. The magnetic force experienced by the conductor is

Question # 11

Galvanometer is a device used for the detection of

Question # 12

In the region surrounding a current carrying wire:

Question # 13

Magnetic lines of force:

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1

Amperean path is a:
A.

Closed path

B.

Rectangular path

C.

Circular path

D.

Any of above
2 The permeability of free space is measured in:
A. Wb/Am
B. Wb A/m
C. Am/Wb
D. m/Web A
3 Magnetic lines of force:
A.

Cannot intersect at all

B.

Intersect at infinity

C.

Intersect within magnet

D.

Intersect at Neutral Point
4 When current passes through a solenoid coil, it behaves like a
A. loop
B. circle
C. bar magnet
D. none of these
5 Current is measured in
A. volts
B. watt
C. ohm
D. ampere
6 The gavanometer constant of a moving coil galvanometer is given by
A. K=BAN/C
B. K=BN/CA
C. K=NAC/B
D. K=C/BAN
7 Electron gun consist of
A. three anodes
B. heating cathode
C. three anodes
D. three anodes , heating cathode, grid
8 If the number of turns of a solenoid (carrying a steady current I) is doubled without changing the length of a solenoid, then magnetic field:
A. Becomes Half
B. Becomes double
C. Is not affected
D. Becomes one fourth
9 When charged particle is projected perpendicular to a uniform magnetic field its trajectory is
A. circular
B. elliptical
C. cycloid
D. straight line
10 The direction of lines of force depends upon the direction of
A. voltage
B. current
C. charges
D. none of these

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