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

F = I(L x B) is a

Question # 2

Hold the solenoid in the right hand with fingers curling in the direction of current. The direction of the field will be given by:

Question # 3

The pointer of a magnetic compass:

Question # 4

When the charged particle is projected at right angles to the field, then experienced by it will be:

Question # 5

The unit of magnetic flux is

Question # 6

CRO deflects the beam of

Question # 7

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

Question # 8

The SI unit of magnetic induction is

Question # 9

Ammeter is used to measure

Question # 10

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 # 11

In the region surrounding a current carrying wire:

Question # 12

The SI unit of flux density is.

Question # 13

The magnetic field in the middle of a solenoid due to current is

Question # 14

The voltage increases linearly with

Question # 15

The angle of deflection of coil can be measured by the

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 To convert galvanometer into ammeter we connect
A. small resistance in parallel with galvanometer
B. small resistance in series with galvanometer
C. high resistance in series with galvanometer
D. high resistance in parallel with galvanometer
2 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
3 When current passes through a solenoid coil, it behaves like a
A. loop
B. circle
C. bar magnet
D. none of these
4 A beam of electrons is provided by an
A. electron gun
B. Suppray
C. Injection
D. None of these
5 (CRO) Cathode ray oscilloscope is a device used for high speed
A. velocity
B. graph plotting
C. time-velocity
D. none of these
6 In a moving coil galvanometer, the deflecting couple depends upon
A. area of the coil
B. number of turns of coil
C. value of magnetic field
D. all of the above
7 When a suitable small resistance is put in parallel with the galvanometer coil, it is converted into
A. Voltmeter
B. Avometer
C. Ammeter
D. None of these
8 The force experienced by charged particle is maximum, if it moves
A. parallel to magnetic field
B. perpendicular to magnetic field
C. opposite to the magnetic field
D. none of these
9 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
10 The SI unit of flux density is.
A. Tesla
B. Weber
C. Gaun
D. Weber/meter

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