ECAT Pre Computer Science Chapter 14 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 14 Electromagnetism

Try The MCQ's Test For ECAT Physics Chapter 14 Electromagnetism

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ECAT Physics Chapter 14 Electromagnetism

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Question # 1

Magnetic lines of force:

Question # 2

Resistance is measured in

Question # 3

A voltmeter is used to measure the

Question # 4

A beam of electrons is provided by an

Question # 5

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

Question # 6

In the region surrounding a current carrying wire:

Question # 7

Magnetic induction is also called as:

Question # 8

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

Question # 9

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 # 10

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

Question # 11

Magnetic flux and flux density are related by

Question # 12

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

Question # 13

Current is measured in

Question # 14

The torque per unit twist of coil is called

Question # 15

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

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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 SI unit of flux density is.
A. Tesla
B. Weber
C. Gaun
D. Weber/meter
3 CRO deflects the beam of
A. proton
B. a-particle
C. electron
D. neutron
4 The current in microamperes required to produce one millimeter deflection on a scale placed one meter away from the mirror of the galvanometer, defined the sensitivity of
A. ammeter
B. voltmeter
C. galvanometer
D. avo-meter
5 If the value of galvanometer constant k = C/BAN is made small, the galvanometer can be made
A. Sensitive
B. Accurate
C. Stable
D. None of these
6 The direction of lines of force depends upon the direction of
A. voltage
B. current
C. charges
D. none of these
7 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
8 The total number of lines of magnetic induction pasing through a surface perpendicular to the magnetic field is called
A. magnetic flux
B. magnetic flux density
C. magnetic induction
D. magnetic field intensity
9 The magnetic field outside the solenoid due to current is
A. strong
B. zero
C. weak
D. uniform
10 A beam of electrons is provided by an
A. electron gun
B. Suppray
C. Injection
D. None of these

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