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

Weber is a unit of

Question # 2

NmA-1 is commonly called:

Question # 3

When an electron enters in a magnetic field right angle to its motion, the magnitude of its velocity will be

Question # 4

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

Question # 5

The sources of magnetic field are

Question # 6

The pointer of a magnetic compass:

Question # 7

The magnetic field in the middle of a solenoid due to current is

Question # 8

Magnetic lines of force:

Question # 9

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 # 10

To convert galvanometer into ammeter we connect

Question # 11

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 # 12

The force experienced by a single charge carrier moving with velocity 'v' i magnetic field of strength 'B' is given by

Question # 13

Lorentz force is defined as

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 A charged particle moving at right angle to the magnetic field will experience
A. minimum force
B. maximum force
C. zero
D. moderate force
2 F = I(L x B) is a
A. vector
B. scalar
C. unit vector
D. none of these
3 When a suitable small resistance is put in parallel with the galvanometer coil, it is converted into
A. Voltmeter
B. Avometer
C. Ammeter
D. None of these
4 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)
5 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
6 How many number of anodes used in electron gun
A. one
B. two
C. three
D. six
7 A current carrying conductor is placed at right angle to the magnetic field. The magnetic force experienced by the conductor is
A. minimum
B. maximum
C. zero
D. none of these
8 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
9 magnetic field is a:
A.

Vector quantity

B.

Scalar quantity

C.

Scalar as well as scalar quantity

D.

Any of (A) or (B)
10 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

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