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

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

Question # 2

the current is pass through the straight wire. The magnetic field established around it has its lines of force:

Question # 3

In the region surrounding a current carrying wire:

Question # 4

The permeability of free space is measured in:

Question # 5

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

Question # 6

To convert galvanometer into ammeter we connect

Question # 7

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

Question # 8

The torque per unit twist of coil is called

Question # 9

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

Question # 10

The strength of magnetic field around the current conductor is

Question # 11

Hold the solenoid in the right hand with fingers curling in the direction of current. The direction of the field will be given by:

Question # 12

If volume of wire is 'AL' and there are 'n' numbers of charge carriers per unit volume, then the total number of charge carriers are

Question # 13

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

Question # 14

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

Question # 15

A field is uniform and much stronger:

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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 The permeability of free space is measured in:
A. Wb/Am
B. Wb A/m
C. Am/Wb
D. m/Web A
3 The voltage increases linearly with
A. time
B. velocity
C. acceleration
D. torque
4 Method "lamp and scale arrangement" used to measure the
A. angle of deflection
B. restoring torque
C. magnetic field strength
D. current
5 A resistance used in voltmeter is called
A. shunt resistance
B. high resistance
C. low resistance
D. zero resistance
6 Tesla is the unit of
A. Magnetic induction or flux density
B. Magnetic flux
C. Self inductance
D. None of these
7 In the region surrounding a current carrying wire:
A. A magnetic field is setup

B.

The lines of force are elliptical

C.

Direction of lines of forces depends upon direction of current

D.

Both (A) and (C)
8 When some compass needles are placed on a card board along a circle with the center at the wire, they will
A.

Point the direction of N-S

B.

Set themselves tangential to the circle

C.

Point in the direction of E-W

D.

None of these
9

Amperean path is a:
A.

Closed path

B.

Rectangular path

C.

Circular path

D.

Any of above
10 The SI unit of magnetic permeability is
A. WB A-1m-1
B. WB mA-1
C. WB Am-1
D. None of these

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