ECAT Pre General Science Physics Chapter 14 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 14 Electromagnetism

Try The MCQ's Test For ECAT Pre General Science Physics Chapter 14 Electromagnetism

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ECAT Pre General Science Physics Chapter 14 Electromagnetism

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Question # 1

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

Question # 2

Galvanometer is a device used for the detection of

Question # 3

The sources of magnetic field are

Question # 4

The current is measured in

Question # 5

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

Question # 6

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

Question # 7

How many number of anodes used in electron gun

Question # 8

NmA-1 is commonly called:

Question # 9

Which is modified form of galvanometer

Question # 10

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

Question # 11

Avo-meter is used of measure the

Question # 12

Centripetal force for electron is given by

Question # 13

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

Question # 14

A solenoid is a coil of wire which is:

Question # 15

If the value of galvanometer constant k = C/BAN is made small, the galvanometer can be made

Question # 16

The magnetic field outside the solenoid due to current is

Question # 17

To convert galvanometer into ammeter we connect

Question # 18

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

Question # 19

A relationship between Gauses of magnetic induction and Tesla(T) is given by

Question # 20

The field around a moving charge is called

Question # 21

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

Question # 22

Magnetic induction is also called as:

Question # 23

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

Question # 24

Strength of magnetic field is measured in SI units, in:

Question # 25

The angle of deflection of coil can be measured by the

Question # 26

Magnetic flux passing through a element whose vector area makes an angle0º with lines of magnetic force is:

Question # 27

Weber is a unit of

Question # 28

CRO deflects the beam of

Question # 29

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

Question # 30

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 Galvanometer is a device used for the detection of
A. voltage
B. current
C. temperature
D. pressure
2 The magnetic field inside a solenoid can be increased by:
A. Increasing n
B. Decreasing I
C. Increasing I
D. By using iron core within solenoid
3 Hold the solenoid in the right hand with fingers curling in the direction of current. The direction of the field will be given by:
A.

Thumb

B.

Curled fingers

C.

Middle finger

D.

Arm of right hand
4 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
5 Magnetic lines of force:
A.

Cannot intersect at all

B.

Intersect at infinity

C.

Intersect within magnet

D.

Intersect at Neutral Point
6 A galvanometer in which the coil comes to rest quickly after the current passed through it, or the current stopped form flowing through it, is called
A. dead beat galvanometer
B. stable galvanometer
C. shunt galvanometer
D. sensitive galvanomter
7 A long wire wound tightly on a cylindrical core is called:
A. Potentiometer
B. Solenoid
C. Toroid
D. Wheat and stone bridge
8 A magnetic force on an electron travelling with 108ms-1parallel to a field of strength 1 Wb m-2is
A. Zero
B. 105 m
C. 10-10N
D. 108N
9 The unit of flux density is also given by
A. Weber/m2or Wb . m-2
B. Weber/mor Wb . m
C. Weber/mor Wb . m-1
D. Weber or Wb
10 The magnetic field in the middle of a solenoid due to current is
A. weak
B. strong and uniform
C. none-uniform
D. zero

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