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

The permeability of free space is measured in:

Question # 2

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

Question # 3

A shunt resistance parallel to the galvanometer is used to convert it into

Question # 4

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

Question # 5

In the formula B= µ̻ nl, the symbol n denotes:

Question # 6

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

Question # 7

magnetic field is a:

Question # 8

The SI unit of magnetic induction is

Question # 9

Galvanometer is a device used for the detection of

Question # 10

The most suitable material for permanent magnet is

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

Current is measured in

Question # 13

The SI unit of magnetic permeability is

Question # 14

The angle of deflection of coil can be measured by the

Question # 15

The SI unit of flux density is.

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 F = I(L x B) is a
A. vector
B. scalar
C. unit vector
D. none of these
2 Centripetal force for electron is given by
A. mv2/ r
B. mv / r2
C. mv2/ r
D. mr2/ v
3 41 The force experience, when proton projected in a magnetic field with velocity 'v' is
A. +e(v x B)
B. -C(V x B)
C. +e2(v x B)
D. -e(v2x B)
4 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
5 The straight current carrying conductor experiences maximum force in a uniform magnetic field when it is placed
A. parallel to the field
B. Perpendicular to the field
C. At an angle of 45 to the field
D. None of the above
6 The SI unit of magnetic flux is.
A. weber
B. Nm-1A-1
C. tesla
D. gauss
7 The vector representation of force experience give the direction of
A. magnetic field
B. current
C. length of conductor
D. force
8 When some compass needles are placed on a card board along a circle with the center at the wire, they will
A.

Point the direction of N-S

B.

Set themselves tangential to the circle

C.

Point in the direction of E-W

D.

None of these
9 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)
10 The strength of magnetic field around the current conductor is
A. Smaller near the conductor
B. Greater near the conductor
C. Greater at the large distance from the conductor
D. Constant near and away from the conductor

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