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

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

Question # 2

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 # 3

Kirchhoff's first rule is also called:

Question # 4

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

Question # 5

In a metal, the valence electrons are:

Question # 6

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

Question # 7

Which instrument is expensive and difficult to use?

Question # 8

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

Question # 9

An important part of photocopier is:

Question # 10

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

Question # 11

An ideal voltmeter has:

Question # 12

Electric field lines emerge from the charge in:

Question # 13

Magnetic effect of current is used:

Question # 14

The current that flows through the coil of a motor causes:

Question # 15

An example of photoconductor is:

Question # 16

Aluminum is a:

Question # 17

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

Question # 18

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

Question # 19

In a metal, the valence electrons are:

Question # 20

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

Question # 21

Selenium is:

Question # 22

Gaussian surface is always:

Question # 23

An important part of inkjet printer is:

Question # 24

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

Question # 25

In case of metallic conductors, the charge carriers are

Question # 26

Electric flux is:

Question # 27

Thermistors are prepared under

Question # 28

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

Question # 29

The charge carriers in an electrolyte are

Question # 30

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

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 Electrolysis is the study of conduction of electricity through:
A. Solids
B. Liquids
C. Gases
D. Plasma
2 In case of metallic conductors, the charge carriers are
A. Protons
B. Electrons
C. Antiprotons
D. Positrons
3 In gases, the charge carriers are:
A. Electrons
B. Positive ions
C. Negative ions
D. Both A and C
4 A current of 1 ampere is passing through a conductor. The charge passing through it in half a minute s
A. One coulomb
B. 0.5 coulomb
C. 30 coulombs
D. 2 coulombs
5 The best conductor is:
A. Silver
B. Copper
C. Aluminimum
D. Both B and C
6 An important part of photocopier is:
A.

Toner cartridge

B. Deflection plates

C.

Charging electrode

D.

Print head
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 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
9 Xerography means:
A.

Dry writing

B. Wet writing

C.

Poor writing

D.

Excellent writing
10 Aluminum is a:
A.

Good insulator

B.

Bad conductor

C.

Both (A) and (B)

D.

Excellent conductor

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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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