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

Electron gun consist of

Question # 2

Current is measured in

Question # 3

The force acting on a charge moving in a magnetic field

Question # 4

NmA-1 is commonly called:

Question # 5

The torque per unit twist of coil is called

Question # 6

A meter wire carraying a current of 2A is at right angle to the uniform magnetic field of 0.5 Weber/m2The force on the wire is

Question # 7

A charged particle moving at right angle to the magnetic field will experience

Question # 8

magnetic field is a:

Question # 9

The pointer of a magnetic compass:

Question # 10

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 # 11

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

Question # 12

Centripetal force for electron is given by

Question # 13

For the conversion of galvanometer into voltmeter, we connect a

Question # 14

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

Question # 15

The CRO is used for displaying the waveform of a given

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 A field is uniform and much stronger:
A.

Inside a long solenoid

B.

Outside a long solenoid

C.

At the end of a long solenoid

D.

At the central point of long solenoid
2

Amperean path is a:
A.

Closed path

B.

Rectangular path

C.

Circular path

D.

Any of above
3 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
4 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)
5 magnetic field is a:
A.

Vector quantity

B.

Scalar quantity

C.

Scalar as well as scalar quantity

D.

Any of (A) or (B)
6 The e/m of an electron moving in a circular path in a magnetic field is equal to
A. V/Br
B. V/B2r2
C. V2/Br2
D. V2/Br
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 CRO is used for displaying the waveform of a given
A. current
B. voltage
C. both of them
D. none of them
9 The field around a moving charge is called
A. magnetic field
B. conservative field
C. non-conservative field
D. none of these
10 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)

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