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 galvanometer can be made sensitive if the value of the factor C/BAN is

Question # 2

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

Question # 3

The SI unit of magnetic flux is

Question # 4

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

Question # 5

The SI unit of magnetic permeability is

Question # 6

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 # 7

To convert galvanometer into ammeter we connect

Question # 8

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

Question # 9

Current is measured in

Question # 10

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

Question # 11

Galvanometer is a device used for the detection of

Question # 12

The sources of magnetic field are

Question # 13

A resistance used in galvanometer to make it voltmeter is called

Question # 14

Magnetic flux passing through a element whose vector area makes an angle0º with lines of magnetic force is:

Question # 15

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

Question # 16

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

Question # 17

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

Question # 18

CRO deflects the beam of

Question # 19

The current sensitivity of the galvanometer is

Question # 20

Centripetal force for electron is given by

Question # 21

The SI unit of flux density is

Question # 22

The voltage increases linearly with

Question # 23

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

Question # 24

The force exerted on a conductor of length L, carrying current I when placed in a magnetic field B is given by

Question # 25

Lorentz force is defined as

Question # 26

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

Question # 27

The SI unit of magnetic flux is.

Question # 28

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

Question # 29

The direction of lines of force depends upon the direction of

Question # 30

Ammeter is used to measure

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 A resistance used in galvanometer to make it voltmeter is called
A. shunt resistance
B. high resistance
C. zero resistance
D. none of these
2 A shunt resistance parallel to the galvanometer is used to convert it into
A. avometer
B. millimeter
C. voltmeter
D. none of these
3 The SI unit of flux density is
A. Newton/Amp-meter
B. Newton-m/Ampere
C. Newton-m/Amp2
D. Newton-Amp/meter
4 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
A. magnetic flux
B. magnetic induction
C. magnetic field
D. self inductance
5 Strength of magnetic field is measured in SI units, in:
A. N
B. N/Am
C. Am/N
D. Nm/A
6 A current carrying conductor sets up its own:
A.

Electric field

B.

Nuclear field

C.

Magnetic field

D.

Both (A) and (C)
7 When charged particle is projected perpendicular to a uniform magnetic field its trajectory is
A. circular
B. elliptical
C. cycloid
D. straight line
8 A current carrying conductor is placed at right angle to the magnetic field. The magnetic force experienced by the conductor is
A. minimum
B. maximum
C. zero
D. none of these
9 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
10 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

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