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 third band of the colour code:

Question # 2

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

Question # 3

Which instrument is expensive and difficult to use?

Question # 4

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 # 5

The emf is measured in:

Question # 6

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

Question # 7

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

Question # 8

Heating effect of current utilized in:

Question # 9

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

Question # 10

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

Question # 11

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

Question # 12

Selenium is:

Question # 13

Electrolysis is the study of conduction of electricity through:

Question # 14

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

Question # 15

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

Question # 16

The inkjet printer ejects a thin stream of:

Question # 17

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

Question # 18

Thermistors are prepared under

Question # 19

The value of relative permittivity of different dielectrics are:

Question # 20

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

Question # 21

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

Question # 22

A field free region is found:

Question # 23

As the current flows through the wire

Question # 24

Xerography means:

Question # 25

Most practical application of electricity involve

Question # 26

An ideal voltmeter has:

Question # 27

As the current flow through the wire:

Question # 28

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 # 29

An eV is unit of:

Question # 30

An important part of photocopier is:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1

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

Chemical energy

B.

Mechanical energy

C.

Heat energy

D.

Both (A) and (B)
2

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

Both the conductors are at the same potential

B.

Potential difference across the conductors remain constant

C.

Potential difference across the conductors becomes zero

D.

Both (A) and (B)
3

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

Both the conductors are at the same potential

B.

Potential difference across the conductors remain constant

C.

Potential difference across the conductors becomes zero

D.

Both (A) and (B)
4 In gases, the charge carries are:
A.

Electrons

B.

Positive ions

C.

Negative ions

D.

Both (A) and (C)
5

An inkjet printer uses in its operation:
A.

Neutrons only

B.

Mesons only

C.

Positrons and photons

D.

An electric charge
6 The term drift velocity is used when the ends of a wire are:
A.

Connected to a laser source

B.

Connected to a voltage source

C.

Not connected to a voltage source

D.

At different values of potential
7

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:
A.

Same

B.

Different

C.

Opposite to each other

D.

At 60º with each other
8 Which instrument is expensive and difficult to use?
A. Voltmeter
B. Potentiometer
C. CRO
D. Both A and C
9

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
10

Electric flux is:
A. Cross product of two vector

B.

Dot product of two vectors

C.

A vector quantity

D.

A scalar quantity

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