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 field is uniform and much stronger:

Question # 2

To convert galvanometer into ammeter we connect

Question # 3

The current is measured in

Question # 4

A beam of electrons is provided by an

Question # 5

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

Question # 6

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 # 7

A current carrying conductor sets up its own:

Question # 8

The torque per unit twist of coil is called

Question # 9

Tesla is the unit of

Question # 10

In order to make a voltmeter, high resistance is connected with galvanometer, in

Question # 11

The magnetic field inside a solenoid can be increased by:

Question # 12

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

Question # 13

A resistance used in galvanometer to make it voltmeter is called

Question # 14

The SI unit of flux density is.

Question # 15

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

Question # 16

The field around a moving charge is called

Question # 17

Avo-meter is used of measure the

Question # 18

Centripetal force for electron is given by

Question # 19

the current is pass through the straight wire. The magnetic field established around it has its lines of force:

Question # 20

Ammeter is used to measure

Question # 21

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 # 22

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

Question # 23

A meter wire carraying a current of 2A is at right angle to the uniform magnetic field of 0.5 Weber/m2The force on the wire is

Question # 24

If the number of turns of a solenoid (carrying a steady current I) is doubled without changing the length of a solenoid, then magnetic field:

Question # 25

41 The force experience, when proton projected in a magnetic field with velocity 'v' is

Question # 26

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

Question # 27

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

Question # 28

The vector representation of force experience give the direction of

Question # 29

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

Question # 30

The unit of magnetic flux is

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The magnetic field in the middle of a solenoid due to current is
A. weak
B. strong and uniform
C. none-uniform
D. zero
2

Amperean path is a:
A.

Closed path

B.

Rectangular path

C.

Circular path

D.

Any of above
3 The SI unit of magnetic flux is
A. NmA-2
B. NmA-1
C. NAm-1
D. Nm2A-1
4 A voltmeter is used to measure the
A. potential difference
B. current
C. temperature
D. resistance
5 The sources of magnetic field are
A. isolated magnetic poles
B. charges at rest
C. charges in motion
D. none of these
6 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
7 Strength of magnetic field is measured in SI units, in:
A. N
B. N/Am
C. Am/N
D. Nm/A
8 The gavanometer constant of a moving coil galvanometer is given by
A. K=BAN/C
B. K=BN/CA
C. K=NAC/B
D. K=C/BAN
9 The field around a moving charge is called
A. magnetic field
B. conservative field
C. non-conservative field
D. none of these
10 The strength of magnetic field around the current conductor is
A. Smaller near the conductor
B. Greater near the conductor
C. Greater at the large distance from the conductor
D. Constant near and away from the conductor

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