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

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

Question # 2

Kirchhoff's first rule is also called:

Question # 3

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

Question # 4

The fourth band is a:

Question # 5

Xerography means:

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 magnitude of chemical Effects depends upon:

Question # 8

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

Question # 9

The electric flux through any surface depends upon:

Question # 10

The third band of the colour code:

Question # 11

An eV is unit of:

Question # 12

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

Question # 13

SI unit of current describes the flow of charge at the rate of

Question # 14

Electrolysis is the study of conduction of electricity through:

Question # 15

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 # 16

Tick the correct statement:

Question # 17

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 # 18

Static electricity is produced by the transfer of:

Question # 19

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

Question # 20

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

Question # 21

The emf is measured in:

Question # 22

In case of metallic conductors, the change carries are:

Question # 23

Most practical applications of electricity involve

Question # 24

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

Question # 25

In a metal, the valence electrons are:

Question # 26

The surface destiny of charge is defined is:

Question # 27

An important part of photocopier is:

Question # 28

The value of relative permittivity of different dielectrics are:

Question # 29

In a metal, the valence electrons are:

Question # 30

The charge carriers in an electrolyte are

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1

The obvious effect/s of current is/are:
A.

Heating effect

B.

Magnetic effect

C.

Chemical effect

D.

Both (C) and (B)
2 When certain area A is held parallel to the field lines, then:
A.

No lines cross this area

B.

Maximum lines pass through this area

C.

The number of lines are between zero and maximum

D.

Both (A) and (B) correct
3 Thermistors are prepared under
A. High pressure and low temperature
B. High pressure and high temperature
C. Low pressure and low temperature
D. Low pressure and high temprature
4 Kirchhoff's first rule is also called:
A. Loop rule
B. Thumb rule
C. Point rule
D. Right hand rule
5

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
6 The value of resistivity is the least for:
A. Copper
B. Aluminimum
C. Silver
D. Tungsten
7

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

One coulomb

B.

0.5 coulomb

C.

30 coulomb

D.

2 coulombs
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 As the current flow through the wire:
A.

It generates heat in the wire

B.

It produces sound in the wire

C.

Resistance of the wire decreases

D.

Voltage across the ends is increased
10 The free electrons in metals:
A.

Are in random motion and their speed depends upon temperature

B.

Move in particular direction

C.

Move with speed of light

D.

Move such that their speed does not depend on their temperature

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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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