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 force experienced by an electron projected in a magnetic field B with a velocity V is given by

Question # 2

Gauss(G) is smaller unit of magnetic induction which is related to tesla(T) as

Question # 3

The field around a moving charge is called

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

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

Question # 8

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

Question # 9

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

Question # 10

41 The force experience, when proton projected in a magnetic field with velocity 'v' is

Question # 11

The unit of flux density is also given by

Question # 12

The CRO deflects the beam of electrons, when they passes through uniform

Question # 13

A galvanometer in which the coil comes to rest quickly after the current passed through it, or the current stopped form flowing through it, is called

Question # 14

The force acting as one meter length of the conductor placed at right angle to the magnetic field, when one A current is passing through it, defines the

Question # 15

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

Question # 16

The direction of lines of force depends upon the direction of

Question # 17

A field is uniform and much stronger:

Question # 18

Weber is a unit of

Question # 19

The strength of magnetic field around the current conductor is

Question # 20

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

Question # 21

The SI unit of magnetic induction is

Question # 22

Magnetic flux and flux density are related by

Question # 23

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

Question # 24

The pointer of a magnetic compass:

Question # 25

if the field is directed along the normal to the area, then flux is:

Question # 26

The gavanometer constant of a moving coil galvanometer is given by

Question # 27

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

Question # 28

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

Question # 29

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

Question # 30

If the value of galvanometer constant k = C/BAN is made small, the galvanometer can be made

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 A relationship between Gauses of magnetic induction and Tesla(T) is given by
A. G 10-3T
B. G = 10-2T
C. G = 10-4T
D. G = 10-1T
2 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
3 The SI unit of magnetic flux is.
A. weber
B. Nm-1A-1
C. tesla
D. gauss
4 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
5 Magnetic flux passing through the an element of are A placed perpendicular to a uniform magnetic field Bis:
A. Maximum
B. Minimum
C. Zero
D. Very small
6

Amperean path is a:
A.

Closed path

B.

Rectangular path

C.

Circular path

D.

Any of above
7 Which is modified form of galvanometer
A. potentiometer
B. battery
C. voltmeter
D. slide wire bridge
8 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
9 When the waveform of one voltage is increasing and that of second is decreasing and vice versa, then phase difference between these voltage is
A. 90°
B. 75°
C. 0°
D. 180°
10 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

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