ECAT Pre Engineering Physics Chapter 14 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 14 Electromagnetism

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

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Physics ECAT Pre Engineering Chapter 14 Electromagnetism

00:00
Question # 1

Magnetic lines of force:

Question # 2

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

Question # 3

Lorentz force is defined as

Question # 4

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

Question # 5

Magnetic induction is also called as:

Question # 6

The magnetic field inside a solenoid can be increased by:

Question # 7

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

Question # 8

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

Question # 9

The galvanometer can be made sensitive if the value of the factor C/BAN is

Question # 10

The angle of deflection of coil can be measured by the

Question # 11

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

Question # 12

Weber is a unit of

Question # 13

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 # 14

To convert galvanometer into ammeter we connect

Question # 15

In the region surrounding a current carrying wire:

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 Hold the solenoid in the right hand with fingers curling in the direction of current. The direction of the field will be given by:
A.

Thumb

B.

Curled fingers

C.

Middle finger

D.

Arm of right hand
2 A current carrying conductor sets up its own:
A.

Electric field

B.

Nuclear field

C.

Magnetic field

D.

Both (A) and (C)
3 Weber is a unit of
A. magnetic flux
B. magnetic filed intensity
C. magnetic induction
D. magnetic flux density
4 The unit of magnetic flux is
A. Weber-m2
B. Weber-m3
C. Henry
D. Weber
5 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
6 A shunt resistance parallel to the galvanometer is used to convert it into
A. avometer
B. millimeter
C. voltmeter
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 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
9 CRO deflects the beam of
A. proton
B. a-particle
C. electron
D. neutron
10 The magnetic field inside a solenoid can be increased by:
A. Increasing n
B. Decreasing I
C. Increasing I
D. By using iron core within solenoid

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