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

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

Question # 2

In case of metallic conductors, the charge carriers are

Question # 3

An important part of photocopier is:

Question # 4

Static electricity is produced by the transfer of:

Question # 5

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

Question # 6

The value of resistivity is the least for:

Question # 7

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

Question # 8

The inkjet printer ejects a thin stream of:

Question # 9

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

Question # 10

An eV is unit of:

Question # 11

Which instrument is expensive and difficult to use?

Question # 12

In case of two identical charges placed certain distance apart, the electric field lines are:

Question # 13

An ideal voltmeter has:

Question # 14

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

Question # 15

The free electrons in metals:

Question # 16

In a metal, the valence electrons are:

Question # 17

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

Question # 18

When resistance of a current carrying wire increases due to rise in temperature, the drift velocity of electrons:

Question # 19

An important part of inkjet printer is:

Question # 20

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

Question # 21

Electric flux is:

Question # 22

The current that flows through the coil of a motor causes

Question # 23

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

Question # 24

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

Question # 25

Selenium is:

Question # 26

Heating effect of current utilized in:

Question # 27

The flux through a closed surface depends upon:

Question # 28

When two spherical conducting balls at different potentials are joined by a metallic wire, after some time:

Question # 29

The best conductor is:

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 In a metal, the valence electrons are:
A.

Attach to individual atoms

B.

Not attached to individual atoms

C.

Free to move within the metal

D.

Both (A) and (C)
2 Which of the following substances has got positive temperature coefficient of resistance?
A. Carbon
B. Germanium
C. Silicon
D. Aluminium
3

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

Protons

B.

Electrons

C.

Antiprotons

D.

Positrons
4 Gaussian surface is always:
A.

Rectangular

B.

Spherical

C.

Cylindrical

D.

Box shape
5 Xerography means:
A.

Dry writing

B. Wet writing

C.

Poor writing

D.

Excellent writing
6

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

Cell

B.

Voltmeter

C.

Thermocouple

D.

Potentiometer
7

When two spherical conducting balls at different potentials are joined by metallic wire, the current starts:
A.

Decreasing from zero to maximum

B.

Increasing from zero to maximum

C.

Decreasing from maximum to zero

D.

Increasing from maximum to zero
8 Most practical application of electricity involve
A.

Charges at the rest

B.

Charges in the motion

C.

Electrons at rest

D.

Atoms in motion
9

The obvious effect/s of current is/are:
A.

Heating effect

B.

Magnetic effect

C.

Chemical effect

D.

Both (C) and (B)
10 The surface destiny of charge is defined is:
A.

Charge per volume

B.

Mass per volume

C.

Charge per area

D.

Mass per area

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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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