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

Question # 2

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

Question # 3

Electrostatics is the branch of physics which deals with the study of electro charges:

Question # 4

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

Question # 5

Xerography means:

Question # 6

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 # 7

In gases, the charge carries are:

Question # 8

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

Question # 9

An important part of inkjet printer is:

Question # 10

Electrolysis is the study of conduction of electricity through:

Question # 11

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

Question # 12

The charge carries in the electrolyte are:

Question # 13

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

Question # 14

Heating effect of current utilized in:

Question # 15

Kirchhoff's first rule is also called:

Question # 16

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

Question # 17

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

Question # 18

As the current flows through the wire

Question # 19

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

Question # 20

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

Question # 21

In a metal, the valence electrons are:

Question # 22

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

Question # 23

The surface destiny of charge is defined is:

Question # 24

The inkjet printer ejects a thin stream of:

Question # 25

The current that flows through the coil of a motor causes

Question # 26

In case of metallic conductors, the charge carriers are

Question # 27

In gases, the charge carriers are:

Question # 28

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

Question # 29

Selenium is:

Question # 30

Most practical applications of electricity involve

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 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
2 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
3 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)
4 The strength of magnetic field at certain points around a wire depends upon:
A.

Value of current passing

B.

Distance from the current element

C.

Color of the material

D.

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

Charge per volume

B.

Mass per volume

C.

Charge per area

D.

Mass per area
6 In case of metallic conductors, the charge carriers are
A. Protons
B. Electrons
C. Antiprotons
D. Positrons
7 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
8 Static electricity is produced by the transfer of:
A.

Electrons

B.

Protons

C.

One fluid

D.

Two fluids
9

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
10 An example of photoconductor is:
A.

Boron

B.

Carbon

C.

Iron

D.

Aluminum

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