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

Magnetic flux and flux density are related by

Question # 2

The SI unit of magnetic permeability is

Question # 3

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 # 4

Which one of the following relations is correct?

Question # 5

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

Question # 6

When charged particle is projected perpendicular to a uniform magnetic field its trajectory is

Question # 7

A solenoid is a coil of wire which is:

Question # 8

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

Question # 9

Magnetic induction is also called as:

Question # 10

Resistance is measured in

Question # 11

Weber is a unit of

Question # 12

The sources of magnetic field are

Question # 13

A field is uniform and much stronger:

Question # 14

magnetic field is a:

Question # 15

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

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 'K' is the proportionality constant of force experienced by conductor. What is the value of 'K' in SI units?
A. 0
B. 1
C. 0.5
D. -1
2 The force exerted on a conductor of length L, carrying current I when placed in a magnetic field B is given by
A. F=IB/L
B. F= L x B/I
C. F = IL x B
D. F = IL . B
3 When an electron enters in a magnetic field right angle to its motion, the magnitude of its velocity will be
A. changed
B. zero
C. unchanged
D. none of these
4 The torque per unit twist of coil is called
A. proportionality constant
B. gravitational constant
C. boltzman constant
D. coupling constant
5 When charged particle is projected perpendicular to a uniform magnetic field its trajectory is
A. circular
B. elliptical
C. cycloid
D. straight line
6 The voltage increases linearly with
A. time
B. velocity
C. acceleration
D. torque
7 Avo-meter is used of measure the
A. current, voltage
B. voltage, resistance
C. resistance, current
D. current, voltage and resistance
8 The force experienced by an electron projected in a magnetic field B with a velocity V is given by
A. F=e(V x B)
B. F= -e(V x B)
C. F= e(B x V)
D. Both a and c
9 if the field is directed along the normal to the area, then flux is:
A.

Maximum

B.

Equal to zero

C.

Equal to BA

D.

Minimum
10 The direction of lines of force depends upon the direction of
A. voltage
B. current
C. charges
D. none of these

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