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

Resistance is measured in

Question # 2

The CRO is used for displaying the waveform of a given

Question # 3

The total number of lines of magnetic induction pasing through a surface perpendicular to the magnetic field is called

Question # 4

When an electron enters in a magnetic field right angle to its motion, the magnitude of its velocity will be

Question # 5

The strength of magnetic field around the current conductor is

Question # 6

The force experienced by an electron projected in a magnetic field B with a velocity V is given by

Question # 7

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

Question # 8

A magnetic force on an electron travelling with 108ms-1parallel to a field of strength 1 Wb m-2is

Question # 9

The unit of magnetic flux is

Question # 10

The force exerted on a conductor of length L, carrying current I when placed in a magnetic field B is given by

Question # 11

Amperean path is a:

Question # 12

the current is pass through the straight wire. The magnetic field established around it has its lines of force:

Question # 13

The gavanometer constant of a moving coil galvanometer is given by

Question # 14

The pointer of a magnetic compass:

Question # 15

The galvanometer can be made sensitive if the value of the factor C/BAN is

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 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
2 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
3 CRO deflects the beam of
A. proton
B. a-particle
C. electron
D. neutron
4 How many number of anodes used in electron gun
A. one
B. two
C. three
D. six
5 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
6 The SI unit of flux density is.
A. Tesla
B. Weber
C. Gaun
D. Weber/meter
7 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
8 When the charged particle is projected at right angles to the field, then experienced by it will be:
A. Maximum
B. Zero
C. qvB
D. Both (A) and (B)
9 A voltmeter is used to measure the
A. potential difference
B. current
C. temperature
D. resistance
10 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

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