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

The SI unit of magnetic permeability is

Question # 2

In order to make a voltmeter, high resistance is connected with galvanometer, in

Question # 3

The vector representation of force experience give the direction of

Question # 4

Amperean path is a:

Question # 5

When some compass needles are placed on a card board along a circle with the center at the wire, they will

Question # 6

When the waveform of one voltage is increasing and that of second is decreasing and vice versa, then phase difference between these voltage is

Question # 7

The permeability of free space is measured in:

Question # 8

The magnetic force exerted on an electron moving with velocity 'v' at right angle to the magnetic field is given by

Question # 9

The SI unit of magnetic induction is tesla which is equal to

Question # 10

The pointer of a magnetic compass:

Question # 11

A voltmeter is used to measure the

Question # 12

The SI unit of magnetic induction is

Question # 13

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

Question # 14

The force acting on a charge moving in a magnetic field

Question # 15

The SI unit of flux density is.

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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 The direction of lines of force depends upon the direction of
A. voltage
B. current
C. charges
D. none of these
3 magnetic field is a:
A.

Vector quantity

B.

Scalar quantity

C.

Scalar as well as scalar quantity

D.

Any of (A) or (B)
4 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
5 The SI unit of magnetic flux is.
A. weber
B. Nm-1A-1
C. tesla
D. gauss
6 Lorentz force is defined as
A. q(E + V x B)
B. q(E x B + V)
C. q(E x V + B)
D. q(E x B)
7 A solenoid is a coil of wire which is:
A.

Short, loosely wound, cylindrical

B.

Long, tightly wound, spherical

C.

Long, loosely wound, cylindrical

D.

Long, tightly wound, cylindrical
8 The SI unit of magnetic induction is tesla which is equal to
A. Newton/ampere-meter or N/A-m
B. Newton/ampere2-meter or N/A2-m
C. Newton/ampere2-meter2 or N/A2-m2
D. Newton/ampere2-meter2or N/A2-m2
9 The straight current carrying conductor experiences maximum force in a uniform magnetic field when it is placed
A. parallel to the field
B. Perpendicular to the field
C. At an angle of 45 to the field
D. None of the above
10 Flurescent screen is a screen where visible spot
A. vanishes
B. is made
C. becomes small and large
D. none of these

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