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 unit of flux density is also given by

Question # 2

Method "lamp and scale arrangement" used to measure the

Question # 3

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

Question # 4

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

Question # 5

The SI unit of magnetic permeability is

Question # 6

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

Question # 7

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

Question # 8

CRO deflects the beam of

Question # 9

In the formula B= µ̻ nl, the symbol n denotes:

Question # 10

The most suitable material for permanent magnet is

Question # 11

The current is measured in

Question # 12

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 # 13

The unit of magnetic flux is

Question # 14

The angle of deflection of coil can be measured by the

Question # 15

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

Question # 16

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

Question # 17

The magnetic field outside the solenoid due to current is

Question # 18

A field is uniform and much stronger:

Question # 19

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 # 20

The CRO is used for displaying the waveform of a given

Question # 21

Weber is a unit of

Question # 22

The force acting on a charge moving in a magnetic field

Question # 23

Ammeter is used to measure

Question # 24

Galvanometer is a device used for the detection of

Question # 25

Tesla is the unit of

Question # 26

A voltmeter is used to measure the

Question # 27

The torque per unit twist of coil is called

Question # 28

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

Question # 29

Avo-meter is used of measure the

Question # 30

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

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 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
2 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
3 The CRO is used for displaying the waveform of a given
A. current
B. voltage
C. both of them
D. none of them
4 A shunt resistance parallel to the galvanometer is used to convert it into
A. avometer
B. millimeter
C. voltmeter
D. none of these
5 When the charged particle is projected at right angles to the field, then experienced by it will be:
A. Maximum
B. Zero
C. qvB
D. Both (A) and (B)
6 NmA-1 is commonly called:
A. Weber
B. Apmere
C. Guass
D. Coulomb
7 The current is measured in
A. volts
B. watt
C. ampere
D. ohm
8 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
9 The working of all DC electric meters (galvanometers, ammetersand voltmeters) depends upon
A. Heating effect of current
B. Chemical effect of current
C. Magnetic effect of current
D. Electromagnetic effect of current
10 The SI unit of flux density is.
A. Tesla
B. Weber
C. Gaun
D. Weber/meter

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