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

A magnetic force on an electron travelling with 108ms-1parallel to a field of strength 1 Wb m-2is

Question # 2

It is customary represent a current flowing towards the reader by a symbol

Question # 3

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

Question # 4

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

Question # 5

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

Question # 6

The SI unit of magnetic induction is tesla which is equal to

Question # 7

CRO deflects the beam of

Question # 8

magnetic field is a:

Question # 9

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

Question # 10

A full-scale deflection is obtained in a galvanometer with a current of few

Question # 11

The SI unit of magnetic flux is

Question # 12

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 # 13

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

Question # 14

Magnetic lines of force:

Question # 15

In the expression of force experienced by electron, the direction of both v and B are

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 A full-scale deflection is obtained in a galvanometer with a current of few
A. ampere
B. volts
C. milliampere
D. ohm
2 The magnetic field in the middle of a solenoid due to current is
A. weak
B. strong and uniform
C. none-uniform
D. zero
3 A field is uniform and much stronger:
A.

Inside a long solenoid

B.

Outside a long solenoid

C.

At the end of a long solenoid

D.

At the central point of long solenoid
4 The SI unit of magnetic permeability is
A. WB A-1m-1
B. WB mA-1
C. WB Am-1
D. None of these
5 Tesla is the unit of
A. Magnetic induction or flux density
B. Magnetic flux
C. Self inductance
D. None of these
6 When charged particle is projected perpendicular to a uniform magnetic field its trajectory is
A. circular
B. elliptical
C. cycloid
D. straight line
7 The force acting on a charge moving in a magnetic field
A. is perpendicular to the both magnetic field and direction of motion
B. is proportional to the magnetic of charges
C. vanishes when the motion is directly opposite to the direction of field
D. all of the above
8 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
A. ammeter
B. voltmeter
C. galvanometer
D. avo-meter
9 The angle of deflection of coil can be measured by the
A. one method
B. three method
C. two method
D. none of these
10 Resistance is measured in
A. volts
B. ampere
C. ohm
D. watt

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