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

A solenoid is a coil of wire which is:

Question # 2

A galvanometer is an instrument used to

Question # 3

Avo-meter is used of measure the

Question # 4

Amperean path is a:

Question # 5

A voltmeter is used to measure the

Question # 6

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

Question # 7

The straight current carrying conductor experiences maximum force in a uniform magnetic field when it is placed

Question # 8

Electron gun consist of

Question # 9

At a given instant, a photon moves in +x direction in a region where there magnetic field in -z direction. The magnetic force on the proton will be the:

Question # 10

If volume of wire is 'AL' and there are 'n' numbers of charge carriers per unit volume, then the total number of charge carriers are

Question # 11

Method "lamp and scale arrangement" used to measure the

Question # 12

41 The force experience, when proton projected in a magnetic field with velocity 'v' is

Question # 13

Resistance is measured in

Question # 14

CRO deflects the beam of

Question # 15

if the field is directed along the normal to the area, then flux is:

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The force acting on a charge moving in a magnetic field
A. is perpendicular to the both magnetic field and direction of motion
B. is proportional to the magnetic of charges
C. vanishes when the motion is directly opposite to the direction of field
D. all of the above
2 The field around a moving charge is called
A. magnetic field
B. conservative field
C. non-conservative field
D. none of these
3 When some compass needles are placed on a card board along a circle with the center at the wire, they will
A.

Point the direction of N-S

B.

Set themselves tangential to the circle

C.

Point in the direction of E-W

D.

None of these
4 A charged particle moving at right angle to the magnetic field will experience
A. minimum force
B. maximum force
C. zero
D. moderate force
5 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
6 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)
7 The angle of deflection of coil can be measured by the
A. one method
B. three method
C. two method
D. none of these
8 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
A. 5N
B. 4N
C. 1.5N
D. 6N
9 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
10 For the conversion of galvanometer into voltmeter, we connect a
A. small resistance in series with galvanometer
B. small resistance in parallel with galvanometer
C. high resistance in parallel with galvanometer
D. high resistance series with galvanometer

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