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 working of galvanometer depends upon torque exerted on a current carrying coil in

Question # 2

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

Question # 3

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

Question # 4

To convert galvanometer into ammeter we connect

Question # 5

The magnetic force exerted on an electron moving with velocity 'v' at right angle to the magnetic field is given by

Question # 6

Avo-meter is used of measure the

Question # 7

The field around a moving charge is called

Question # 8

The magnetic field inside a solenoid can be increased by:

Question # 9

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

Question # 10

The most suitable material for permanent magnet is

Question # 11

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

Question # 12

Magnetic flux and flux density are related by

Question # 13

F = I(L x B) is a

Question # 14

NmA-1 is commonly called:

Question # 15

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 # 16

If the value of galvanometer constant k = C/BAN is made small, the galvanometer can be made

Question # 17

Flurescent screen is a screen where visible spot

Question # 18

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

Question # 19

A shunt resistance parallel to the galvanometer is used to convert it into

Question # 20

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

Question # 21

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

Question # 22

Ammeter is used to measure

Question # 23

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

Question # 24

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 # 25

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

Question # 26

A solenoid is a coil of wire which is:

Question # 27

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

Question # 28

In a moving coil galvanometer, the deflecting couple depends upon

Question # 29

In the region surrounding a current carrying wire:

Question # 30

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

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The working of all DC electric meters (galvanometers, ammetersand voltmeters) depends upon
A. Heating effect of current
B. Chemical effect of current
C. Magnetic effect of current
D. Electromagnetic effect of current
2 Total number of turns on 0.15 m length solenoid is 300. the value of n is:
A. Greater than 300
B. Smaller than 300
C. Equal to 300
D. Any of (A) or (B)
3 The SI unit of magnetic flux is.
A. weber
B. Nm-1A-1
C. tesla
D. gauss
4 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
5 A beam of electrons is provided by an
A. electron gun
B. Suppray
C. Injection
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

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

Circular and endless

B.

Oval in shape and endless

C.

Straight

D.

Parabolic
8 A current carrying conductor sets up its own:
A.

Electric field

B.

Nuclear field

C.

Magnetic field

D.

Both (A) and (C)
9 The unit of magnetic flux is
A. Weber-m2
B. Weber-m3
C. Henry
D. Weber
10 The SI unit of flux density is.
A. Tesla
B. Weber
C. Gaun
D. Weber/meter

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