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

A beam of electrons is provided by an

Question # 2

if the field is directed along the normal to the area, then flux is:

Question # 3

The angle of deflection of coil can be measured by the

Question # 4

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

Question # 5

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

Question # 6

The SI unit of flux density is

Question # 7

How many number of anodes used in electron gun

Question # 8

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

Question # 9

The current sensitivity of the galvanometer is

Question # 10

A voltmeter is used to measure the

Question # 11

In a straight current carrying conductor, the direction of magnetic field can be found by

Question # 12

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

Question # 13

A current carrying conductor sets up its own:

Question # 14

Avo-meter is used of measure the

Question # 15

The strength of magnetic field around the current conductor is

Question # 16

The magnetic field in the middle of a solenoid due to current is

Question # 17

Magnetic flux passing through the an element of are A placed perpendicular to a uniform magnetic field Bis:

Question # 18

Weber is a unit of

Question # 19

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 # 20

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

Question # 21

The gavanometer constant of a moving coil galvanometer is given by

Question # 22

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 # 23

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

Question # 24

The torque per unit twist of coil is called

Question # 25

CRO deflects the beam of

Question # 26

The permeability of free space is measured in:

Question # 27

A resistance used in voltmeter is called

Question # 28

Magnetic flux and flux density are related by

Question # 29

Magnetic induction is also called as:

Question # 30

The pointer of a magnetic compass:

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The vector representation of force experience give the direction of
A. magnetic field
B. current
C. length of conductor
D. force
2 The current sensitivity of the galvanometer is
A. C/BAN
B. BAN/C
C. CAN/B
D. CBN/A
3 Avo-meter is used of measure the
A. current, voltage
B. voltage, resistance
C. resistance, current
D. current, voltage and resistance
4 The SI unit of magnetic flux is
A. NmA-2
B. NmA-1
C. NAm-1
D. Nm2A-1
5 The SI unit of flux density is
A. Newton/Amp-meter
B. Newton-m/Ampere
C. Newton-m/Amp2
D. Newton-Amp/meter
6 Tesla is the unit of
A. Magnetic induction or flux density
B. Magnetic flux
C. Self inductance
D. None of these
7 The magnetic force exerted on an electron moving with velocity 'v' at right angle to the magnetic field is given by
A. F=eVB
B. F=e2V/B
C. F=e/VB
D. F=B2/ev
8 The SI unit of magnetic induction is tesla which is equal to
A. Newton/ampere-meter or N/A-m
B. Newton/ampere2-meter or N/A2-m
C. Newton/ampere2-meter2 or N/A2-m2
D. Newton/ampere2-meter2or N/A2-m2
9 The sources of magnetic field are
A. isolated magnetic poles
B. charges at rest
C. charges in motion
D. none of these
10 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)

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