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

Weber is a unit of

Question # 3

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

Question # 4

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 # 5

The current is measured in

Question # 6

In the expression of force experienced by electron, the direction of both v and B are

Question # 7

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

Question # 8

The direction of lines of force depends upon the direction of

Question # 9

The torque per unit twist of coil is called

Question # 10

For the conversion of galvanometer into voltmeter, we connect a

Question # 11

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

Question # 12

CRO deflects the beam of

Question # 13

A beam of electrons is provided by an

Question # 14

The magnetic field inside a solenoid can be increased by:

Question # 15

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

Question # 16

The unit of magnetic flux is

Question # 17

Tesla is the unit of

Question # 18

Method "lamp and scale arrangement" used to measure the

Question # 19

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

Question # 20

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

Question # 21

The force experienced by an electron projected in a magnetic field B with a velocity V is given by

Question # 22

In the region surrounding a current carrying wire:

Question # 23

NmA-1 is commonly called:

Question # 24

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

Question # 25

The angle of deflection of coil can be measured by the

Question # 26

The sources of magnetic field are

Question # 27

A long wire wound tightly on a cylindrical core is called:

Question # 28

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

Question # 29

Which is modified form of galvanometer

Question # 30

The SI unit of magnetic flux is

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 A full-scale deflection is obtained in a galvanometer with a current of few
A. ampere
B. volts
C. milliampere
D. ohm
2 The CRO is used for displaying the waveform of a given
A. current
B. voltage
C. both of them
D. none of them
3 The magnetic field in the middle of a solenoid due to current is
A. weak
B. strong and uniform
C. none-uniform
D. zero
4 A relationship between Gauses of magnetic induction and Tesla(T) is given by
A. G 10-3T
B. G = 10-2T
C. G = 10-4T
D. G = 10-1T
5 In the region surrounding a current carrying wire:
A. A magnetic field is setup

B.

The lines of force are elliptical

C.

Direction of lines of forces depends upon direction of current

D.

Both (A) and (C)
6 if the field is directed along the normal to the area, then flux is:
A.

Maximum

B.

Equal to zero

C.

Equal to BA

D.

Minimum
7 The force experienced by charged particle is maximum, if it moves
A. parallel to magnetic field
B. perpendicular to magnetic field
C. opposite to the magnetic field
D. none of these
8 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
9 The SI unit of flux density is.
A. Tesla
B. Weber
C. Gaun
D. Weber/meter
10 A resistance used in galvanometer to make it voltmeter is called
A. shunt resistance
B. high resistance
C. zero resistance
D. none of these

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