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

How many number of anodes used in electron gun

Question # 2

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

Question # 3

The most suitable material for permanent magnet is

Question # 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

Question # 5

The pointer of a magnetic compass:

Question # 6

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

Question # 7

When charged particle is projected perpendicular to a uniform magnetic field its trajectory is

Question # 8

The voltage increases linearly with

Question # 9

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 # 10

The SI unit of magnetic induction is

Question # 11

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 # 12

A resistance used in voltmeter is called

Question # 13

Avo-meter is used of measure the

Question # 14

A galvanometer is an instrument used to

Question # 15

Weber is a unit of

Question # 16

If volume of wire is 'AL' and there are 'n' numbers of charge carriers per unit volume, then the total number of charge carriers are

Question # 17

The SI unit of magnetic permeability is

Question # 18

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

Question # 19

Magnetic induction is also called as:

Question # 20

The magnetic field outside the solenoid due to current is

Question # 21

The SI unit of flux density is.

Question # 22

The CRO is used for displaying the waveform of a given

Question # 23

The sources of magnetic field are

Question # 24

Current is measured in

Question # 25

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

Question # 26

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

Question # 27

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

Question # 28

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

Question # 29

To convert galvanometer into ammeter we connect

Question # 30

The field around a moving charge is called

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 (CRO) Cathode ray oscilloscope is a device used for high speed
A. velocity
B. graph plotting
C. time-velocity
D. none of these
2 The galvanometer can be made sensitive if the value of the factor C/BAN is
A. constant
B. small
C. large
D. none of these
3 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
4 The permeability of free space is measured in:
A. Wb/Am
B. Wb A/m
C. Am/Wb
D. m/Web A
5 When charged particle is projected perpendicular to a uniform magnetic field its trajectory is
A. circular
B. elliptical
C. cycloid
D. straight line
6 Lorentz force is defined as
A. q(E + V x B)
B. q(E x B + V)
C. q(E x V + B)
D. q(E x B)
7 A charged particle moving at right angle to the magnetic field will experience
A. minimum force
B. maximum force
C. zero
D. moderate force
8 Current is measured in
A. volts
B. watt
C. ohm
D. ampere
9 The field around a moving charge is called
A. magnetic field
B. conservative field
C. non-conservative field
D. none of these
10 When some compass needles are placed on a card board along a circle with the center at the wire, they will
A.

Point the direction of N-S

B.

Set themselves tangential to the circle

C.

Point in the direction of E-W

D.

None of these

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