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

Charge to mass ratio (e/m) of an electron is given by the relation

Question # 2

The field around a moving charge is called

Question # 3

The unit of flux density is also given by

Question # 4

Tesla is the unit of

Question # 5

The magnetic field outside the solenoid due to current is

Question # 6

In a moving coil galvanometer, the deflecting couple depends upon

Question # 7

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

Question # 8

Weber is a unit of

Question # 9

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

Question # 10

How many number of anodes used in electron gun

Question # 11

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

Question # 12

The CRO deflects the beam of electrons, when they passes through uniform

Question # 13

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

Question # 14

The SI unit of magnetic flux is

Question # 15

The direction of lines of force depends upon the direction of

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 A beam of electrons is provided by an
A. electron gun
B. Suppray
C. Injection
D. None of these
2 A long wire wound tightly on a cylindrical core is called:
A. Potentiometer
B. Solenoid
C. Toroid
D. Wheat and stone bridge
3 The angle of deflection of coil can be measured by the
A. one method
B. three method
C. two method
D. none of these
4 How many number of anodes used in electron gun
A. one
B. two
C. three
D. six
5 Magnetic flux passing through a element whose vector area makes an angle0º with lines of magnetic force is:
A. BACosѲ

B. Zero
C. BA
D. BA sinѲ
6 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
7

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
8 In a straight current carrying conductor, the direction of magnetic field can be found by
A. right hand rule
B. left hand rule
C. head to tall rule
D. none of these
9 41 The force experience, when proton projected in a magnetic field with velocity 'v' is
A. +e(v x B)
B. -C(V x B)
C. +e2(v x B)
D. -e(v2x B)
10 If the value of galvanometer constant k = C/BAN is made small, the galvanometer can be made
A. Sensitive
B. Accurate
C. Stable
D. None of these

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