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 relationship between Gauses of magnetic induction and Tesla(T) is given by

Question # 2

The SI unit of magnetic flux is

Question # 3

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

Question # 4

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

Question # 5

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 # 6

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

Question # 7

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

Question # 8

The pointer of a magnetic compass:

Question # 9

Avo-meter is used of measure the

Question # 10

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

Question # 11

The current is measured in

Question # 12

For the conversion of galvanometer into voltmeter, we connect a

Question # 13

A current carrying conductor sets up its own:

Question # 14

The SI unit of magnetic flux is.

Question # 15

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

Question # 16

A resistance used in galvanometer to make it voltmeter is called

Question # 17

How many number of anodes used in electron gun

Question # 18

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 # 19

Method "lamp and scale arrangement" used to measure the

Question # 20

A field is uniform and much stronger:

Question # 21

CRO deflects the beam of

Question # 22

Weber is a unit of

Question # 23

The magnetic field inside a solenoid can be increased by:

Question # 24

To convert galvanometer into ammeter we connect

Question # 25

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

Question # 26

For measuring large currents, an ordinary galvanometer cannot be used without proper, then both relates with each other as

Question # 27

The gavanometer constant of a moving coil galvanometer is given by

Question # 28

A beam of electrons is provided by an

Question # 29

Current is measured in

Question # 30

The CRO is used for displaying the waveform of a given

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 How many number of anodes used in electron gun
A. one
B. two
C. three
D. six
2 The force acting on a charge moving in a magnetic field
A. is perpendicular to the both magnetic field and direction of motion
B. is proportional to the magnetic of charges
C. vanishes when the motion is directly opposite to the direction of field
D. all of the above
3 The SI unit of magnetic flux is.
A. weber
B. Nm-1A-1
C. tesla
D. gauss
4 When an electron enters in a magnetic field right angle to its motion, the magnitude of its velocity will be
A. changed
B. zero
C. unchanged
D. none of these
5 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
6 In a straight current carrying conductor, the direction of magnetic field can be found by
A. right hand rule
B. left hand rule
C. head to tall rule
D. none of these
7 A solenoid is a coil of wire which is:
A.

Short, loosely wound, cylindrical

B.

Long, tightly wound, spherical

C.

Long, loosely wound, cylindrical

D.

Long, tightly wound, cylindrical
8 Gauss(G) is smaller unit of magnetic induction which is related to tesla(T) as
A. IT = 10-4 G
B. IT = 105G
C. IT = 103G
D. IT = 104G
9 Resistance is measured in
A. volts
B. ampere
C. ohm
D. watt
10 A resistance used in voltmeter is called
A. shunt resistance
B. high resistance
C. low resistance
D. zero resistance

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