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

Electric field lines emerge from the charge in:

Question # 2

In a metal, the valence electrons are:

Question # 3

The number of field lines passing through unit area held perpendicular to the field lines represent:

Question # 4

The obvious effect/s of current is/are:

Question # 5

Thermistors are prepared under

Question # 6

The electric flux through any surface depends upon:

Question # 7

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

Question # 8

The free electrons in metals:

Question # 9

Which of the following substances has got positive temperature coefficient of resistance?

Question # 10

The quantity having the same unit as that of emf is:

Question # 11

In case of metallic conductors, the charge carriers are

Question # 12

The best conductor is:

Question # 13

Aluminum is a:

Question # 14

When certain area A is held parallel to the field lines, then:

Question # 15

An important part of photocopier is:

Question # 16

Static electricity is produced by the transfer of:

Question # 17

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

Question # 18

Electric flux is:

Question # 19

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:

Question # 20

Selenium is:

Question # 21

In case of metallic conductors, the charge carriers are

Question # 22

When a constant potential difference is applied across the conductor, the drift velocity of electrons:

Question # 23

The flux through a closed surface depends upon:

Question # 24

In a metal, the valence electrons are:

Question # 25

Heating effect of current utilized in:

Question # 26

A rheostat can e used:

Question # 27

The example/s of non-electrical energy to electrical is/are:

Question # 28

In case of metallic conductors, the change carries are:

Question # 29

Flux through a closed surface of any shape and flux through the surface of a sphere drawn around a charge are:

Question # 30

The positive charge moving in one direction is equivalent in all external affects to a:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 An important part of photocopier is:
A.

Toner cartridge

B. Deflection plates

C.

Charging electrode

D.

Print head
2 The interior of a hollow charged metal sphere is a region which:
A.

Contain some magnitude of electric field

B.

Is full of electric field lines

C.

Is field-free region

D.

Either (A) or (B)
3

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
4 Most practical applications of electricity involve
A. Charges at rest
B. Charges in motion
C. Electrons at rest
D. Atoms in motion
5 Electric field lines emerge from the charge in:
A.

One dimension

B.

Two dimensions

C.

Three dimensions

D.

Four dimensions
6 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)
7 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
8

Two dissimilar metals joined at their ends kept at constant temperature constitute:
A.

Cell

B.

Voltmeter

C.

Thermocouple

D.

Potentiometer
9 An electric field is generated along the wire when:
A.

Its resistance is very high

B.

A constant potential is maintained across the wire

C.

Net current through the wire is zero

D.

A constant potential difference is maintained across the wire
10

In case of metallic conductors, the change carries are:
A.

Protons

B.

Electrons

C.

Antiprotons

D.

Positrons

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  • Hamza

    Hamza

    17 Aug 2019

    It has many error

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  • Salmankhan

    Salmankhan

    02 Feb 2018

    Sir g plz correct this mcq the device which convert electrical into machinical is called moter but here the answer is generator

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