ECAT Pre General Science Physics Chapter 14 Electromagnetism

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  • Chapter NameCh 14 - Electromagnetism

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

A voltmeter is used to measure the

Question # 2

Total number of turns on 0.15 m length solenoid is 300. the value of n is:

Question # 3

When current passes through a solenoid coil, it behaves like a

Question # 4

How many number of anodes used in electron gun

Question # 5

The field around a moving charge is called

Question # 6

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

Question # 7

The force acting as one meter length of the conductor placed at right angle to the magnetic field, when one A current is passing through it, defines the

Question # 8

Centripetal force for electron is given by

Question # 9

The unit of magnetic flux is

Question # 10

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

Question # 11

The working of all DC electric meters (galvanometers, ammetersand voltmeters) depends upon

Question # 12

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

Question # 13

The SI unit of magnetic flux is

Question # 14

Which one of the following relations is correct?

Question # 15

A current carrying conductor is placed at right angle to the magnetic field. The magnetic force experienced by the conductor is

Question # 16

The unit of flux density is also given by

Question # 17

The working of galvanometer depends upon torque exerted on a current carrying coil in

Question # 18

Tesla is the unit of

Question # 19

Magnetic flux and flux density are related by

Question # 20

The most suitable material for permanent magnet is

Question # 21

In a moving coil galvanometer, the deflecting couple depends upon

Question # 22

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

Question # 23

The voltage increases linearly with

Question # 24

Weber is a unit of

Question # 25

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

Question # 26

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

Question # 27

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

Question # 28

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

Question # 29

The SI unit of flux density is

Question # 30

The CRO is used for displaying the waveform of a given

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