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 galvanometer is an instrument used to

Question # 2

Magnetic flux passing through a element whose vector area makes an angle0º with lines of magnetic force is:

Question # 3

The current sensitivity of the galvanometer is

Question # 4

When charged particle is projected perpendicular to a uniform magnetic field its trajectory is

Question # 5

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

Question # 6

In order to make a voltmeter, high resistance is connected with galvanometer, in

Question # 7

The force acting on a charge moving in a magnetic field

Question # 8

Resistance is measured in

Question # 9

Magnetic flux passing through the an element of are A placed perpendicular to a uniform magnetic field Bis:

Question # 10

Which is modified form of galvanometer

Question # 11

A charged particle moving at right angle to the magnetic field will experience

Question # 12

Magnetic flux and flux density are related by

Question # 13

The direction of lines of force depends upon the direction of

Question # 14

For the conversion of galvanometer into voltmeter, we connect a

Question # 15

Centripetal force for electron is given by

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ECAT Chapter 14 Important MCQ's

Sr.# Question Answer
1 The total number of lines of magnetic induction pasing through a surface perpendicular to the magnetic field is called
A. magnetic flux
B. magnetic flux density
C. magnetic induction
D. magnetic field intensity
2 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
A. F = B2
B. F = 0
C. F = B
D. F = B/2
3 Which one of the following relations is correct?
A. 1 Wb-m2= Nm-1A-1
B. 1 tesla = 104 gausses
C. 1 Wb-m2= 1 tesla
D. All of the above
4 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
5 Magnetic lines of force:
A.

Cannot intersect at all

B.

Intersect at infinity

C.

Intersect within magnet

D.

Intersect at Neutral Point
6 A meter wire carraying a current of 2A is at right angle to the uniform magnetic field of 0.5 Weber/m2The force on the wire is
A. 5N
B. 4N
C. 1.5N
D. 6N
7 The working of galvanometer depends upon torque exerted on a current carrying coil in
A. magnetic field
B. electric field
C. gravitational field
D. nuclear field
8 A beam of electrons is provided by an
A. electron gun
B. Suppray
C. Injection
D. None of these
9 The SI unit of magnetic permeability is
A. WB A-1m-1
B. WB mA-1
C. WB Am-1
D. None of these
10 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

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