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

Question # 2

NmA-1 is commonly called:

Question # 3

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

Question # 4

Which one of the following relations is correct?

Question # 5

The vector representation of force experience give the direction of

Question # 6

A voltmeter is used to measure the

Question # 7

Tesla is the unit of

Question # 8

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

Question # 9

A galvanometer is an instrument used to

Question # 10

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

Question # 11

Charge to mass ratio (e/m) of an electron is given by the relation

Question # 12

The torque per unit twist of coil is called

Question # 13

Galvanometer is a device used for the detection of

Question # 14

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

Question # 15

The field around a moving charge is called

Question # 16

A resistance used in galvanometer to make it voltmeter is called

Question # 17

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

Question # 18

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

Question # 19

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

Question # 20

Amperean path is a:

Question # 21

A current carrying conductor is placed at right angle to the magnetic field. The magnetic force experienced by the conductor is

Question # 22

Resistance is measured in

Question # 23

In the region surrounding a current carrying wire:

Question # 24

Lorentz force is defined as

Question # 25

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

Question # 26

At a given instant, a photon moves in +x direction in a region where there magnetic field in -z direction. The magnetic force on the proton will be the:

Question # 27

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 # 28

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

Question # 29

The pointer of a magnetic compass:

Question # 30

The voltage increases linearly with

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 A long wire wound tightly on a cylindrical core is called:
A. Potentiometer
B. Solenoid
C. Toroid
D. Wheat and stone bridge
2 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
A. dead beat galvanometer
B. stable galvanometer
C. shunt galvanometer
D. sensitive galvanomter
3 A beam of electrons is provided by an
A. electron gun
B. Suppray
C. Injection
D. None of these
4 A current carrying conductor is placed at right angle to the magnetic field. The magnetic force experienced by the conductor is
A. minimum
B. maximum
C. zero
D. none of these
5 Method "lamp and scale arrangement" used to measure the
A. angle of deflection
B. restoring torque
C. magnetic field strength
D. current
6 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
7 The current sensitivity of the galvanometer is
A. C/BAN
B. BAN/C
C. CAN/B
D. CBN/A
8 In the formula B= µ̻ nl, the symbol n denotes:
A.

Total number of turns of solenoid

B.

Number of turns per unit length

C.

Number of turns per unit volume

D.

Numbers of turns per unit area
9 CRO deflects the beam of
A. proton
B. a-particle
C. electron
D. neutron
10 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

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