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

An example of photoconductor is:

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

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

Question # 4

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

Question # 5

The surface destiny of charge is defined is:

Question # 6

The free electrons in metals:

Question # 7

The value of relative permittivity of different dielectrics are:

Question # 8

In case of metallic conductors, the charge carriers are

Question # 9

Electric field lines emerge from the charge in:

Question # 10

As the current flow through the wire:

Question # 11

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

Question # 12

Most practical applications of electricity involve

Question # 13

The best conductor is:

Question # 14

Electrolysis is the study of conduction of electricity through:

Question # 15

The value of resistivity is the least for:

Question # 16

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

Question # 17

Most practical application of electricity involve

Question # 18

The electric flux through any surface depends upon:

Question # 19

The fourth band is a:

Question # 20

Kirchhoff's first rule is also called:

Question # 21

In case of metallic conductors, the charge carriers are

Question # 22

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

Question # 23

The charge carries in the electrolyte are:

Question # 24

Static electricity is produced by the transfer of:

Question # 25

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

Question # 26

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

Question # 27

The inkjet printer ejects a thin stream of:

Question # 28

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

Question # 29

An important part of photocopier is:

Question # 30

In case of metallic conductors, the change carries are:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 The inkjet printer ejects a thin stream of:
A.

Water

B.

Oil

C.

Ink

D.

Any of above
2 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
3 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
4 Magnetic effect of current is used:
A.

In electric motor

B.

To detect current

C.

To measure current

D.

All of these
5 Most practical applications of electricity involve
A. Charges at rest
B. Charges in motion
C. Electrons at rest
D. Atoms in motion
6 Electric field lines emerge from the charge in:
A.

One dimension

B.

Two dimensions

C.

Three dimensions

D.

Four dimensions
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 In a metal, the valence electrons are:
A. Attached to individual atoms
B. Not attached to individual atoms
C. Free to move within the metal
D. Both A and B
9 The charge carriers in an electrolyte are
A. Positive ions
B. Negative ions
C. Either A or B
D. Both A and B
10 Which of the following substances has got positive temperature coefficient of resistance?
A. Carbon
B. Germanium
C. Silicon
D. Aluminium

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