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

Electron gun consist of

Question # 2

The force acting on a charge moving in a magnetic field

Question # 3

The field around a moving charge is called

Question # 4

41 The force experience, when proton projected in a magnetic field with velocity 'v' is

Question # 5

The unit of magnetic flux is

Question # 6

The direction of lines of force depends upon the direction of

Question # 7

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 # 8

The force experienced by an electron projected in a magnetic field B with a velocity V is given by

Question # 9

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

Question # 10

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

Question # 11

The strength of magnetic field around the current conductor is

Question # 12

The SI unit of magnetic flux is.

Question # 13

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

Question # 14

Tesla is the unit of

Question # 15

Strength of magnetic field is measured in SI units, in:

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 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
2 Hold the solenoid in the right hand with fingers curling in the direction of current. The direction of the field will be given by:
A.

Thumb

B.

Curled fingers

C.

Middle finger

D.

Arm of right hand
3 How many number of anodes used in electron gun
A. one
B. two
C. three
D. six
4 The magnetic field inside a solenoid can be increased by:
A. Increasing n
B. Decreasing I
C. Increasing I
D. By using iron core within solenoid
5 F = I(L x B) is a
A. vector
B. scalar
C. unit vector
D. none of these
6 The unit of flux density is also given by
A. Weber/m2or Wb . m-2
B. Weber/mor Wb . m
C. Weber/mor Wb . m-1
D. Weber or Wb
7 Total number of turns on 0.15 m length solenoid is 300. the value of n is:
A. Greater than 300
B. Smaller than 300
C. Equal to 300
D. Any of (A) or (B)
8

the current is pass through the straight wire. The magnetic field established around it has its lines of force:
A.

Circular and endless

B.

Oval in shape and endless

C.

Straight

D.

Parabolic
9 The CRO is used for displaying the waveform of a given
A. current
B. voltage
C. both of them
D. none of them
10 The CRO deflects the beam of electrons, when they passes through uniform
A. electric field
B. gravitational field
C. magnetic flax
D. magnetic field

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