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 fourth band is a:

Question # 2

Aluminum is a:

Question # 3

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

Question # 4

An important part of inkjet printer is:

Question # 5

A thermistor is a resistor which is:

Question # 6

A field free region is found:

Question # 7

The third band of the colour code:

Question # 8

The charge carriers in an electrolyte are

Question # 9

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

Question # 10

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

Question # 11

The emf is measured in:

Question # 12

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

Question # 13

The free electrons in metals:

Question # 14

Most practical application of electricity involve

Question # 15

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

Question # 16

The charge carries in the electrolyte are:

Question # 17

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

Question # 18

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

Question # 19

In gases, the charge carries are:

Question # 20

Electrolysis is the study of conduction of electricity through:

Question # 21

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

Question # 22

The device which can convert heat energy into electrical energy is called:

Question # 23

In case of metallic conductors, the change carries are:

Question # 24

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

Question # 25

An important part of photocopier is:

Question # 26

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

Question # 27

Most practical applications of electricity involve

Question # 28

Thermistors are prepared under

Question # 29

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

Question # 30

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

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1

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

Be zero

B.

Be maintained constant

C.

Goes on increasing

D.

Go on decreasing
2 When a constant potential difference is applied across the conductor, the drift velocity of electrons:
A.

Increases

B.

Decreases

C.

Remains the constant

D.

Either of these
3 The emf is measured in:
A. Newton
B. Volt
C. J/C
D. Both A and B
4 The surface destiny of charge is defined is:
A.

Charge per volume

B.

Mass per volume

C.

Charge per area

D.

Mass per area
5 When resistance of a current carrying wire increases due to rise in temperature, the drift velocity of electrons:
A.

Decreases

B.

Increases

C.

Remains the constant

D.

Either of these
6

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
7 Xerography means:
A.

Dry writing

B. Wet writing

C.

Poor writing

D.

Excellent writing
8

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

Protons

B.

Electrons

C.

Antiprotons

D.

Positrons
9 The current that flows through the coil of a motor causes
A. Its shaft to revolve
B. Its brushes to rotate
C. Motor to move
D. Its shaft to rotate
10

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

Primary cell

B.

Secondary cell

C.

Both (A) and (B)

D.

Photovoltaic cell

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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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