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

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Question # 1

The SI unit of magnetic flux is

Question # 2

The magnetic field inside a solenoid can be increased by:

Question # 3

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

Question # 4

The most suitable material for permanent magnet is

Question # 5

Resistance is measured in

Question # 6

The magnetic field outside the solenoid due to current is

Question # 7

The pointer of a magnetic compass:

Question # 8

A resistance used in galvanometer to make it voltmeter is called

Question # 9

Avo-meter is used of measure the

Question # 10

Weber is a unit of

Question # 11

The unit of magnetic flux is

Question # 12

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

Question # 13

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

Question # 14

The SI unit of flux density is.

Question # 15

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

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 Electron gun consist of
A. three anodes
B. heating cathode
C. three anodes
D. three anodes , heating cathode, grid
2 The working of galvanometer depends upon torque exerted on a current carrying coil in
A. magnetic field
B. electric field
C. gravitational field
D. nuclear field
3 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:
A. Becomes Half
B. Becomes double
C. Is not affected
D. Becomes one fourth
4 The force experienced by a single charge carrier moving with velocity 'v' i magnetic field of strength 'B' is given by
A. F =q(v/B)
B. F=q2(v x B)
C. F=q(v x B)
D. F= vx B
5 A current carrying conductor sets up its own:
A.

Electric field

B.

Nuclear field

C.

Magnetic field

D.

Both (A) and (C)
6 The magnetic field in the middle of a solenoid due to current is
A. weak
B. strong and uniform
C. none-uniform
D. zero
7 The SI unit of magnetic flux is.
A. weber
B. Nm-1A-1
C. tesla
D. gauss
8 The unit of magnetic flux is
A. Weber-m2
B. Weber-m3
C. Henry
D. Weber
9

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
10 When charged particle is projected perpendicular to a uniform magnetic field its trajectory is
A. circular
B. elliptical
C. cycloid
D. straight line

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