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

Question # 2

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

Question # 3

A beam of electrons is provided by an

Question # 4

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

Question # 5

Weber is a unit of

Question # 6

To convert galvanometer into ammeter we connect

Question # 7

The force experienced by charged particle is maximum, if it moves

Question # 8

A shunt resistance parallel to the galvanometer is used to convert it into

Question # 9

The pointer of a magnetic compass:

Question # 10

The direction of lines of force depends upon the direction of

Question # 11

Gauss(G) is smaller unit of magnetic induction which is related to tesla(T) as

Question # 12

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

Question # 13

A current carrying conductor sets up its own:

Question # 14

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 # 15

In the region surrounding a current carrying wire:

Question # 16

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

Question # 17

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 # 18

Magnetic flux and flux density are related by

Question # 19

A solenoid is a coil of wire which is:

Question # 20

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

Question # 21

The SI unit of magnetic flux is.

Question # 22

Hold the solenoid in the right hand with fingers curling in the direction of current. The direction of the field will be given by:

Question # 23

The torque per unit twist of coil is called

Question # 24

The force experienced by a single charge carrier moving with velocity 'v' i magnetic field of strength 'B' is given by

Question # 25

The SI unit of magnetic flux is

Question # 26

The vector representation of force experience give the direction of

Question # 27

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

Question # 28

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

Question # 29

Flurescent screen is a screen where visible spot

Question # 30

Which one of the following relations is correct?

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The straight current carrying conductor experiences maximum force in a uniform magnetic field when it is placed
A. parallel to the field
B. Perpendicular to the field
C. At an angle of 45 to the field
D. None of the above
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 Magnetic flux and flux density are related by
A. Flux density = flux x area
B. Flux density = flux / area
C. Flux density = flux - area
D. None of these
4 A resistance used in voltmeter is called
A. shunt resistance
B. high resistance
C. low resistance
D. zero resistance
5 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
6 Flurescent screen is a screen where visible spot
A. vanishes
B. is made
C. becomes small and large
D. none of these
7 When current passes through a solenoid coil, it behaves like a
A. loop
B. circle
C. bar magnet
D. none of these
8 The SI unit of magnetic induction is
A. Gauses
B. Tesla
C. Weber
D. Weber2
9 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
10 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

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