ECAT Pre General Science Physics Chapter 14 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 14 Electromagnetism

Try The MCQ's Test For ECAT Pre General Science Physics Chapter 14 Electromagnetism

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ECAT Pre General Science Physics Chapter 14 Electromagnetism

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Question # 1

The magnetic force exerted on an electron moving with velocity 'v' at right angle to the magnetic field is given by

Question # 2

The galvanometer can be made sensitive if the value of the factor C/BAN is

Question # 3

A field is uniform and much stronger:

Question # 4

The direction of lines of force depends upon the direction of

Question # 5

Tesla is the unit of

Question # 6

The working of all DC electric meters (galvanometers, ammetersand voltmeters) depends upon

Question # 7

The magnetic field inside a solenoid can be increased by:

Question # 8

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

Question # 9

The gavanometer constant of a moving coil galvanometer is given by

Question # 10

In order to make a voltmeter, high resistance is connected with galvanometer, in

Question # 11

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

Question # 12

The SI unit of magnetic induction is

Question # 13

Magnetic flux passing through a element whose vector area makes an angle0º with lines of magnetic force is:

Question # 14

The SI unit of flux density is

Question # 15

To convert galvanometer into ammeter we connect

Question # 16

Current is measured in

Question # 17

In the region surrounding a current carrying wire:

Question # 18

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

Question # 19

magnetic field is a:

Question # 20

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

Question # 21

Weber is a unit of

Question # 22

Galvanometer is a device used for the detection of

Question # 23

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

Question # 24

The SI unit of flux density is.

Question # 25

The unit of magnetic flux is

Question # 26

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

Question # 27

The current is measured in

Question # 28

In a moving coil galvanometer, the deflecting couple depends upon

Question # 29

The magnetic field outside the solenoid due to current is

Question # 30

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

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The magnetic field in the middle of a solenoid due to current is
A. weak
B. strong and uniform
C. none-uniform
D. zero
2 In a straight current carrying conductor, the direction of magnetic field can be found by
A. right hand rule
B. left hand rule
C. head to tall rule
D. none of these
3 A beam of electrons is provided by an
A. electron gun
B. Suppray
C. Injection
D. None of these
4 The force exerted on a conductor of length L, carrying current I when placed in a magnetic field B is given by
A. F=IB/L
B. F= L x B/I
C. F = IL x B
D. F = IL . B
5 Centripetal force for electron is given by
A. mv2/ r
B. mv / r2
C. mv2/ r
D. mr2/ v
6 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)
7 The working of all DC electric meters (galvanometers, ammetersand voltmeters) depends upon
A. Heating effect of current
B. Chemical effect of current
C. Magnetic effect of current
D. Electromagnetic effect of current
8 The gavanometer constant of a moving coil galvanometer is given by
A. K=BAN/C
B. K=BN/CA
C. K=NAC/B
D. K=C/BAN
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 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)

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