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

magnetic field is a:

Question # 2

'K' is the proportionality constant of force experienced by conductor. What is the value of 'K' in SI units?

Question # 3

The e/m of an electron moving in a circular path in a magnetic field is equal to

Question # 4

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

Question # 5

The force exerted on a conductor of length L, carrying current I when placed in a magnetic field B is given by

Question # 6

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

Question # 7

Amperean path is a:

Question # 8

The pointer of a magnetic compass:

Question # 9

The current is measured in

Question # 10

For measuring large currents, an ordinary galvanometer cannot be used without proper, then both relates with each other as

Question # 11

In a straight current carrying conductor, the direction of magnetic field can be found by

Question # 12

The current sensitivity of the galvanometer is

Question # 13

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

Question # 14

At a given instant, a photon moves in +x direction in a region where there magnetic field in -z direction. The magnetic force on the proton will be the:

Question # 15

Tesla is the unit of

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The angle of deflection of coil can be measured by the
A. one method
B. three method
C. two method
D. none of these
2 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)
3 The permeability of free space is measured in:
A. Wb/Am
B. Wb A/m
C. Am/Wb
D. m/Web A
4 Galvanometer is a device used for the detection of
A. voltage
B. current
C. temperature
D. pressure
5 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
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 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
8 Magnetic flux passing through the an element of are A placed perpendicular to a uniform magnetic field Bis:
A. Maximum
B. Minimum
C. Zero
D. Very small
9

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
10 CRO deflects the beam of
A. proton
B. a-particle
C. electron
D. neutron

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