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

Ammeter is used to measure

Question # 2

Which is modified form of galvanometer

Question # 3

The SI unit of magnetic induction is

Question # 4

(CRO) Cathode ray oscilloscope is a device used for high speed

Question # 5

A resistance used in galvanometer to make it voltmeter is called

Question # 6

The voltage increases linearly with

Question # 7

Weber is a unit of

Question # 8

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

Question # 9

In order to make a voltmeter, high resistance is connected with galvanometer, in

Question # 10

Current is measured in

Question # 11

The magnetic field outside the solenoid due to current is

Question # 12

A full-scale deflection is obtained in a galvanometer with a current of few

Question # 13

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

Question # 14

The unit of magnetic flux is

Question # 15

The CRO is used for displaying the waveform of a given

Question # 16

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

Question # 17

The SI unit of magnetic induction is tesla which is equal to

Question # 18

The most suitable material for permanent magnet is

Question # 19

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

Question # 20

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

Question # 21

For measuring large currents, an ordinary galvanometer cannot be used without proper, then both relates with each other as

Question # 22

The direction of lines of force depends upon the direction of

Question # 23

CRO deflects the beam of

Question # 24

Electron gun consist of

Question # 25

NmA-1 is commonly called:

Question # 26

The force acting on a charge moving in a magnetic field

Question # 27

The torque per unit twist of coil is called

Question # 28

To convert galvanometer into ammeter we connect

Question # 29

Magnetic induction is also called as:

Question # 30

The SI unit of magnetic permeability is

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The vector representation of force experience give the direction of
A. magnetic field
B. current
C. length of conductor
D. force
2 A long wire wound tightly on a cylindrical core is called:
A. Potentiometer
B. Solenoid
C. Toroid
D. Wheat and stone bridge
3 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
4 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
5 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
6 For measuring large currents, an ordinary galvanometer cannot be used without proper, then both relates with each other as
A. modification
B. voltage
C. current
D. resistance
7 A current carrying conductor is placed at right angle to the magnetic field. The magnetic force experienced by the conductor is
A. minimum
B. maximum
C. zero
D. none of these
8 Which one of the following relations is correct?
A. 1 Wb-m2= Nm-1A-1
B. 1 tesla = 104 gausses
C. 1 Wb-m2= 1 tesla
D. All of the above
9 The strength of magnetic field around the current conductor is
A. Smaller near the conductor
B. Greater near the conductor
C. Greater at the large distance from the conductor
D. Constant near and away from the conductor
10 If current through conductor is 1 A and length of conductor is 1m placed at right angle to the magnetic field, then the strength of magnetic field is
A. F = B2
B. F = 0
C. F = B
D. F = B/2

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