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

Weber is a unit of

Question # 2

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

Question # 3

The sources of magnetic field are

Question # 4

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

Question # 5

A charged particle moving at right angle to the magnetic field will experience

Question # 6

The force experienced by a single charge carrier moving with velocity 'v' i magnetic field of strength 'B' is given by

Question # 7

Centripetal force for electron is given by

Question # 8

Ammeter is used to measure

Question # 9

The magnetic field outside the solenoid due to current is

Question # 10

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

Question # 11

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

Question # 12

magnetic field is a:

Question # 13

Amperean path is a:

Question # 14

The vector representation of force experience give the direction of

Question # 15

To convert galvanometer into ammeter we connect

Question # 16

In the region surrounding a current carrying wire:

Question # 17

Magnetic lines of force:

Question # 18

Tesla is the unit of

Question # 19

The SI unit of magnetic induction is

Question # 20

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

Question # 21

When the waveform of one voltage is increasing and that of second is decreasing and vice versa, then phase difference between these voltage is

Question # 22

The unit of flux density is also given by

Question # 23

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

Question # 24

The most suitable material for permanent magnet is

Question # 25

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

Question # 26

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

Question # 27

A current carrying conductor sets up its own:

Question # 28

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

Question # 29

The working of galvanometer depends upon torque exerted on a current carrying coil in

Question # 30

A galvanometer is an instrument used to

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The SI unit of magnetic flux is
A. NmA-2
B. NmA-1
C. NAm-1
D. Nm2A-1
2

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
3 Avo-meter is used of measure the
A. current, voltage
B. voltage, resistance
C. resistance, current
D. current, voltage and resistance
4 Strength of magnetic field is measured in SI units, in:
A. N
B. N/Am
C. Am/N
D. Nm/A
5 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
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 In the expression of force experienced by electron, the direction of both v and B are
A. parallel
B. zero
C. perpendicular
D. none of them
8 Lorentz force is defined as
A. q(E + V x B)
B. q(E x B + V)
C. q(E x V + B)
D. q(E x B)
9 Weber is a unit of
A. magnetic flux
B. magnetic filed intensity
C. magnetic induction
D. magnetic flux density
10 A current carrying conductor sets up its own:
A.

Electric field

B.

Nuclear field

C.

Magnetic field

D.

Both (A) and (C)

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