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

How many number of anodes used in electron gun

Question # 2

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

Question # 3

A current carrying conductor sets up its own:

Question # 4

The unit of magnetic flux is

Question # 5

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

Question # 6

The pointer of a magnetic compass:

Question # 7

The angle of deflection of coil can be measured by the

Question # 8

If current through conductor is 1 A and length of conductor is 1m placed at right angle to the magnetic field, then the strength of magnetic field is

Question # 9

A resistance used in galvanometer to make it voltmeter is called

Question # 10

The permeability of free space is measured in:

Question # 11

Which one of the following relations is correct?

Question # 12

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

Question # 13

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

Question # 14

NmA-1 is commonly called:

Question # 15

The magnetic force exerted on an electron moving with velocity 'v' at right angle to the magnetic field is given by

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 '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
2 It is customary represent a current flowing towards the reader by a symbol
A. (x)
B. (+)
C. (.)
D. (-)
3 F = I(L x B) is a
A. vector
B. scalar
C. unit vector
D. none of these
4 The CRO deflects the beam of electrons, when they passes through uniform
A. electric field
B. gravitational field
C. magnetic flax
D. magnetic field
5 In the expression of force experienced by electron, the direction of both v and B are
A. parallel
B. zero
C. perpendicular
D. none of them
6 Strength of magnetic field is measured in SI units, in:
A. N
B. N/Am
C. Am/N
D. Nm/A
7 Magnetic flux and flux density are related by
A. Flux density = flux x area
B. Flux density = flux / area
C. Flux density = flux - area
D. None of these
8 (CRO) Cathode ray oscilloscope is a device used for high speed
A. velocity
B. graph plotting
C. time-velocity
D. none of these
9 In order to make a voltmeter, high resistance is connected with galvanometer, in
A. perpendicular
B. may be paralled or pendicular
C. series
D. none of these
10 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)

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