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

Question # 2

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

Question # 3

The voltage increases linearly with

Question # 4

Electron gun consist of

Question # 5

F = I(L x B) is a

Question # 6

Lorentz force is defined as

Question # 7

In a moving coil galvanometer, the deflecting couple depends upon

Question # 8

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

Question # 9

A resistance used in voltmeter is called

Question # 10

A galvanometer is an instrument used to

Question # 11

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 # 12

The current is measured in

Question # 13

The angle of deflection of coil can be measured by the

Question # 14

The gavanometer constant of a moving coil galvanometer is given by

Question # 15

A field is uniform and much stronger:

Question # 16

Amperean path is a:

Question # 17

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

Question # 18

The strength of magnetic field around the current conductor is

Question # 19

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 # 20

The field around a moving charge is called

Question # 21

The pointer of a magnetic compass:

Question # 22

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

Question # 23

NmA-1 is commonly called:

Question # 24

A solenoid is a coil of wire which is:

Question # 25

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

Question # 26

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

Question # 27

A resistance used in galvanometer to make it voltmeter is called

Question # 28

CRO deflects the beam of

Question # 29

To convert galvanometer into ammeter we connect

Question # 30

The e/m of an electron moving in a circular path in a magnetic field is equal to

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 In the formula B= µ̻ nl, the symbol n denotes:
A.

Total number of turns of solenoid

B.

Number of turns per unit length

C.

Number of turns per unit volume

D.

Numbers of turns per unit area

2 In order to make a voltmeter, high resistance is connected with galvanometer, in
A. perpendicular
B. may be paralled or pendicular
C. series
D. none of these
3 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)
4 The working of galvanometer depends upon torque exerted on a current carrying coil in
A. magnetic field
B. electric field
C. gravitational field
D. nuclear field
5 A resistance used in galvanometer to make it voltmeter is called
A. shunt resistance
B. high resistance
C. zero resistance
D. none of these
6 For the conversion of galvanometer into voltmeter, we connect a
A. small resistance in series with galvanometer
B. small resistance in parallel with galvanometer
C. high resistance in parallel with galvanometer
D. high resistance series with galvanometer
7 The SI unit of magnetic permeability is
A. WB A-1m-1
B. WB mA-1
C. WB Am-1
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 most suitable material for permanent magnet is
A. cobalt
B. iron
C. steel
D. alaminium
10 A shunt resistance parallel to the galvanometer is used to convert it into
A. avometer
B. millimeter
C. voltmeter
D. none of these

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