ECAT Pre Engineering Physics Chapter 13 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 13 Current Electricity

Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 13 Current Electricity

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Physics ECAT Pre Engineering Chapter 13 Current Electricity

00:00
Question # 1

Static electricity is produced by the transfer of:

Question # 2

Conversion of chemical energy to electrical energy can be achieved by:

Question # 3

An important part of photocopier is:

Question # 4

The strength of magnetic field at certain points around a wire depends upon:

Question # 5

Electric field lines emerge from the charge in:

Question # 6

The term drift velocity is used when the ends of a wire are:

Question # 7

In case of metallic conductors, the charge carriers are

Question # 8

SI unit of current describes the flow of charge at the rate of

Question # 9

The effects of bends in a wire on its electrical resistance are:

Question # 10

The passage of current is accompanied by a magnetic field in the surrounding space:

Question # 11

The surface destiny of charge is defined is:

Question # 12

An eV is unit of:

Question # 13

The obvious effect/s of current is/are:

Question # 14

In order to have a constant current through wire, the potential difference across its end should:

Question # 15

The value of resistivity is the least for:

Question # 16

Xerography means:

Question # 17

The value of relative permittivity of different dielectrics are:

Question # 18

Gaussian surface is always:

Question # 19

The earth’s potential and potential at infinity are taken:

Question # 20

Most practical application of electricity involve

Question # 21

As the current flow through the wire:

Question # 22

Certain charge +q is placed at the center of a sphere. At each of the sphere,The directions of electric intensity and vector area are:

Question # 23

Kirchhoff's first rule is also called:

Question # 24

A rheostat can e used:

Question # 25

The rate at which the free electrons pass through any section of a metallic wire from right to left is:

Question # 26

Magnetic effect of current is used:

Question # 27

The conventional current is the name given to current due to flow of

Question # 28

Most practical applications of electricity involve

Question # 29

The emf is measured in:

Question # 30

Electrolysis is the study of conduction of electricity through:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1

The current of 1 ampere is passing through a conductor. The charge passing through it in half a minute is:
A.

One coulomb

B.

0.5 coulomb

C.

30 coulomb

D.

2 coulombs
2 The conventional current is the name given to current due to flow of:
A. Positrons
B.

Positive charges

C.

Negative charges

D.

Both (A) and (C)
3 A field free region is found:
A.

Near the outer surface of a hollow charged metal sphere

B.

In the interior of solid metal uncharged sphere

C.

In the interior of solid metal charged sphere

D.

Both (A) and (B)
4 The passage of current is accompanied by a magnetic field in the surrounding space:
A.

Always accompanied

B.

Sometimes accompanied

C.

Never accompanied

D. Any of above
5 An example of photoconductor is:
A.

Boron

B.

Carbon

C.

Iron

D.

Aluminum
6

The rate at which the free electrons pass through any section of a metallic wire from right to left is:
A.

Greater than the speed at which they pass from left to right

B.

Less than the speed at which they pass from left to right

C.

The same speed at which they pass from left to right

D.

Any of above
7 The best conductor is:
A. Silver
B. Copper
C. Aluminimum
D. Both B and C
8 When certain area A is held parallel to the field lines, then:
A.

No lines cross this area

B.

Maximum lines pass through this area

C.

The number of lines are between zero and maximum

D.

Both (A) and (B) correct
9 The passage of current is accompanied by a magnetic field in the surrounding space:
A.

Always accompanied

B.

Sometimes accompanied

C.

Never accompanied

D. Any of above
10

While finding the electric intensity at a point between two oppositely charged parallel plates, the Gaussian surface is taken in the form of a hollow:
A.

Circle

B.

Rectangle

C.

Sphere

D.

Box

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