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

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

Question # 2

The current in microamperes required to produce one millimeter deflection on a scale placed one meter away from the mirror of the galvanometer, defined the sensitivity of

Question # 3

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

Question # 4

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

Question # 5

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

Question # 6

A beam of electrons is provided by an

Question # 7

A long wire wound tightly on a cylindrical core is called:

Question # 8

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

Question # 9

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

Question # 10

Tesla is the unit of

Question # 11

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

Question # 12

A solenoid is a coil of wire which is:

Question # 13

The SI unit of magnetic induction is

Question # 14

A resistance used in galvanometer to make it voltmeter is called

Question # 15

Ammeter is used to measure

Question # 16

The magnetic field inside a solenoid can be increased by:

Question # 17

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

Question # 18

Centripetal force for electron is given by

Question # 19

It is customary represent a current flowing towards the reader by a symbol

Question # 20

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

Question # 21

Resistance is measured in

Question # 22

Weber is a unit of

Question # 23

The unit of flux density is also given by

Question # 24

If volume of wire is 'AL' and there are 'n' numbers of charge carriers per unit volume, then the total number of charge carriers are

Question # 25

Which one of the following relations is correct?

Question # 26

Amperean path is a:

Question # 27

When the waveform of one voltage is increasing and that of second is decreasing and vice versa, then phase difference between these voltage is

Question # 28

The unit of magnetic flux is

Question # 29

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

Question # 30

A galvanometer is an instrument used to

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 A relationship between Gauses of magnetic induction and Tesla(T) is given by
A. G 10-3T
B. G = 10-2T
C. G = 10-4T
D. G = 10-1T
2 Magnetic flux passing through a element whose vector area makes an angle0º with lines of magnetic force is:
A. BACosѲ

B. Zero
C. BA
D. BA sinѲ
3 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
4 Galvanometer is a device used for the detection of
A. voltage
B. current
C. temperature
D. pressure
5 The e/m of an electron moving in a circular path in a magnetic field is equal to
A. V/Br
B. V/B2r2
C. V2/Br2
D. V2/Br
6 In a straight current carrying conductor, the direction of magnetic field can be found by
A. right hand rule
B. left hand rule
C. head to tall rule
D. none of these
7 Weber is a unit of
A. magnetic flux
B. magnetic filed intensity
C. magnetic induction
D. magnetic flux density
8

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

Circular and endless

B.

Oval in shape and endless

C.

Straight

D.

Parabolic
9 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
10 41 The force experience, when proton projected in a magnetic field with velocity 'v' is
A. +e(v x B)
B. -C(V x B)
C. +e2(v x B)
D. -e(v2x B)

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