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

Selenium is:

Question # 2

The charge carriers in an electrolyte are

Question # 3

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

Question # 4

In a metal, the valence electrons are:

Question # 5

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

Question # 6

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

Question # 7

As the current flows through the wire

Question # 8

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

Question # 9

An eV is unit of:

Question # 10

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

Question # 11

The obvious effect/s of current is/are:

Question # 12

The effects of bends in a wire on its electrical resistance are:

Question # 13

Electric flux is:

Question # 14

An example of photoconductor is:

Question # 15

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

Question # 16

An important part of photocopier is:

Question # 17

Aluminum is a:

Question # 18

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

Question # 19

The third band of the colour code:

Question # 20

Static electricity is produced by the transfer of:

Question # 21

The free electrons in metals:

Question # 22

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

Question # 23

A field free region is found:

Question # 24

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

Question # 25

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

Question # 26

In gases, the charge carries are:

Question # 27

Conversion of chemical energy to electrical energy can be achieved by:

Question # 28

Electric field lines emerge from the charge in:

Question # 29

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

Question # 30

The value of relative permittivity of different dielectrics are:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1

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

Thermistor

B.

Thermometer

C.

Thermostat

D.

Thermocouple
2 The passage of current is accompanied by a magnetic field in the surrounding space:
A.

Always accompanied

B.

Sometimes accompanied

C.

Never accompanied

D. Any of above
3 An important part of photocopier is:
A.

Toner cartridge

B. Deflection plates

C.

Charging electrode

D.

Print head
4 When a constant potential difference is applied across the conductor, the drift velocity of electrons:
A.

Increases

B.

Decreases

C.

Remains the constant

D.

Either of these
5 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
6

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

Greater than the speed at which they pass from left to right

B.

Less than the speed at which they pass from left to right

C.

The same speed at which they pass from left to right

D.

Any of above
7

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
8 The fourth band is a:
A. Silver band
B. Red band
C. Gold band
D. Either A or C
9 Tick the correct statement:
A.

Both the potential and potential difference is scalars

B.

Potential is a scalar but potential difference is a vector

C. Both are vectors

D.

Potential is vector but potential difference is scalar
10

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

At rest

B.

At rest under the action of electric forces

C.

In motion under the action of electric forces

D.

In motion

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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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