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

A relationship between Gauses of magnetic induction and Tesla(T) is given by

Question # 2

Total number of turns on 0.15 m length solenoid is 300. the value of n is:

Question # 3

The SI unit of magnetic flux is.

Question # 4

NmA-1 is commonly called:

Question # 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:

Question # 6

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

Question # 7

The vector representation of force experience give the direction of

Question # 8

The field around a moving charge is called

Question # 9

The force exerted on a conductor of length L, carrying current I when placed in a magnetic field B is given by

Question # 10

Which one of the following relations is correct?

Question # 11

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

Question # 12

Flurescent screen is a screen where visible spot

Question # 13

Centripetal force for electron is given by

Question # 14

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

Question # 15

The total number of lines of magnetic induction pasing through a surface perpendicular to the magnetic field is called

Question # 16

A galvanometer is an instrument used to

Question # 17

Weber is a unit of

Question # 18

The pointer of a magnetic compass:

Question # 19

Ammeter is used to measure

Question # 20

Hold the solenoid in the right hand with fingers curling in the direction of current. The direction of the field will be given by:

Question # 21

Magnetic induction is also called as:

Question # 22

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

Question # 23

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

Question # 24

The unit of flux density is also given by

Question # 25

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

Question # 26

'K' is the proportionality constant of force experienced by conductor. What is the value of 'K' in SI units?

Question # 27

For the conversion of galvanometer into voltmeter, we connect a

Question # 28

How many number of anodes used in electron gun

Question # 29

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

Question # 30

The angle of deflection of coil can be measured by the

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 Gauss(G) is smaller unit of magnetic induction which is related to tesla(T) as
A. IT = 10-4 G
B. IT = 105G
C. IT = 103G
D. IT = 104G
2 The current is measured in
A. volts
B. watt
C. ampere
D. ohm
3 The SI unit of magnetic flux is
A. NmA-2
B. NmA-1
C. NAm-1
D. Nm2A-1
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 In order to make a voltmeter, high resistance is connected with galvanometer, in
A. perpendicular
B. may be paralled or pendicular
C. series
D. none of these
6 The CRO is used for displaying the waveform of a given
A. current
B. voltage
C. both of them
D. none of them
7 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
8 The permeability of free space is measured in:
A. Wb/Am
B. Wb A/m
C. Am/Wb
D. m/Web A
9 A charged particle moving at right angle to the magnetic field will experience
A. minimum force
B. maximum force
C. zero
D. moderate force
10 A resistance used in voltmeter is called
A. shunt resistance
B. high resistance
C. low resistance
D. zero resistance

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