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

The emf is measured in:

Question # 3

Tick the correct statement:

Question # 4

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 # 5

In case of metallic conductors, the charge carriers are

Question # 6

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

Question # 7

Selenium is:

Question # 8

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

Question # 9

In case of metallic conductors, the change carries are:

Question # 10

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

Question # 11

A thermistor is a resistor which is:

Question # 12

Field lines are closer to each other in the region where the field is:

Question # 13

Kirchhoff's first rule is also called:

Question # 14

The flux through a closed surface depends upon:

Question # 15

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

Question # 16

The value of resistivity is the least for:

Question # 17

The free electrons in metals:

Question # 18

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

Question # 19

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

Question # 20

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 # 21

The surface destiny of charge is defined is:

Question # 22

An electric field is generated along the wire when:

Question # 23

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

Question # 24

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

Question # 25

Electric flux is:

Question # 26

Which instrument is expensive and difficult to use?

Question # 27

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

Question # 28

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

Question # 29

Static electricity is produced by the transfer of:

Question # 30

Most practical application of electricity involve

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 Selenium is:
A.

An insulator

B.

A conductor

C.

Insulator in the dark and becomes conductor when exposed to light

D.

Conductor in the dark only
2 The charge carriers in an electrolyte are
A. Positive ions
B. Negative ions
C. Either A or B
D. Both A and B
3

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

Different

B.

Same

C.

Such that it is greater in the first case

D.

Such that it is greater in the second case
4 An example of photoconductor is:
A.

Boron

B.

Carbon

C.

Iron

D.

Aluminum
5 A field free region is found:
A.

Near the outer surface of a hollow charged metal sphere

B.

In the interior of solid metal uncharged sphere

C.

In the interior of solid metal charged sphere

D.

Both (A) and (B)
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

Heating effect of current utilized in:
A.

Electric motor

B.

Electric toaster

C.

Electroplating

D.

Electric kettle
8

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)
9

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

Cell

B.

Voltmeter

C.

Thermocouple

D.

Potentiometer
10 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)

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