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 resistance used in voltmeter is called

Question # 2

The SI unit of magnetic flux is

Question # 3

To convert galvanometer into ammeter we connect

Question # 4

A solenoid is a coil of wire which is:

Question # 5

Centripetal force for electron is given by

Question # 6

Resistance is measured in

Question # 7

Which is modified form of galvanometer

Question # 8

The most suitable material for permanent magnet is

Question # 9

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

Question # 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

Question # 11

When current passes through a solenoid coil, it behaves like a

Question # 12

Magnetic induction is also called as:

Question # 13

Method "lamp and scale arrangement" used to measure the

Question # 14

A resistance used in galvanometer to make it voltmeter is called

Question # 15

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

Question # 16

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 # 17

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

Question # 18

CRO deflects the beam of

Question # 19

Lorentz force is defined as

Question # 20

A field is uniform and much stronger:

Question # 21

Which one of the following relations is correct?

Question # 22

The magnetic field outside the solenoid due to current is

Question # 23

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

Question # 24

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

Question # 25

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

Question # 26

The SI unit of flux density is

Question # 27

The SI unit of magnetic induction is

Question # 28

The magnetic field inside a solenoid can be increased by:

Question # 29

The sources of magnetic field are

Question # 30

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

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1

The pointer of a magnetic compass:
A.

Is affected only by permanent magnets

B.

Align itself parallel to the applied magnetic field

C.

Vibrates in the magnetic field of the current

D.

Aligns itself perpendicular to the magnetic field
2 The e/m of an electron moving in a circular path in a magnetic field is equal to
A. V/Br
B. V/B2r2
C. V2/Br2
D. V2/Br
3 Avo-meter is used of measure the
A. current, voltage
B. voltage, resistance
C. resistance, current
D. current, voltage and resistance
4 When the charged particle is projected at right angles to the field, then experienced by it will be:
A. Maximum
B. Zero
C. qvB
D. Both (A) and (B)
5 In a moving coil galvanometer, the deflecting couple depends upon
A. area of the coil
B. number of turns of coil
C. value of magnetic field
D. all of the above
6 A galvanometer is an instrument used to
A. measure voltage across a circuit
B. detect current in a circuit
C. measure current flowing through a circuit
D. none of these
7 When current passes through a solenoid coil, it behaves like a
A. loop
B. circle
C. bar magnet
D. none of these
8 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
9 if the field is directed along the normal to the area, then flux is:
A.

Maximum

B.

Equal to zero

C.

Equal to BA

D.

Minimum
10 The SI unit of magnetic flux is
A. NmA-2
B. NmA-1
C. NAm-1
D. Nm2A-1

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