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

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

Question # 2

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

Question # 3

The voltage increases linearly with

Question # 4

The unit of flux density is also given by

Question # 5

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

Question # 6

The SI unit of magnetic induction is

Question # 7

The most suitable material for permanent magnet is

Question # 8

Weber is a unit of

Question # 9

(CRO) Cathode ray oscilloscope is a device used for high speed

Question # 10

The straight current carrying conductor experiences maximum force in a uniform magnetic field when it is placed

Question # 11

Current is measured in

Question # 12

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 # 13

The current in microamperes required to produce one millimeter deflection on a scale placed one meter away from the mirror of the galvanometer, defined the sensitivity of

Question # 14

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

Question # 15

A long wire wound tightly on a cylindrical core is called:

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 When charged particle is projected perpendicular to a uniform magnetic field its trajectory is
A. circular
B. elliptical
C. cycloid
D. straight line
2 The torque per unit twist of coil is called
A. proportionality constant
B. gravitational constant
C. boltzman constant
D. coupling constant
3 The voltage increases linearly with
A. time
B. velocity
C. acceleration
D. torque
4 In the expression of force experienced by electron, the direction of both v and B are
A. parallel
B. zero
C. perpendicular
D. none of them
5

Amperean path is a:
A.

Closed path

B.

Rectangular path

C.

Circular path

D.

Any of above
6 For the conversion of galvanometer into voltmeter, we connect a
A. small resistance in series with galvanometer
B. small resistance in parallel with galvanometer
C. high resistance in parallel with galvanometer
D. high resistance series with galvanometer
7 A beam of electrons is provided by an
A. electron gun
B. Suppray
C. Injection
D. None of these
8 When an electron enters in a magnetic field right angle to its motion, the magnitude of its velocity will be
A. changed
B. zero
C. unchanged
D. none of these
9 A full-scale deflection is obtained in a galvanometer with a current of few
A. ampere
B. volts
C. milliampere
D. ohm
10 It is customary represent a current flowing towards the reader by a symbol
A. (x)
B. (+)
C. (.)
D. (-)

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