ECAT Pre General Science Physics Chapter 13 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 13 Current Electricity

Try The MCQ's Test For ECAT Pre General Science Physics Chapter 13 Current Electricity

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ECAT Pre General Science Physics Chapter 13 Current Electricity

00:00
Question # 1

Most practical application of electricity involve

Question # 2

Most practical applications of electricity involve

Question # 3

Thermistors are prepared under

Question # 4

The charge carriers in an electrolyte are

Question # 5

In a metal, the valence electrons are:

Question # 6

Which of the following substances has got positive temperature coefficient of resistance?

Question # 7

Gaussian surface is always:

Question # 8

The fourth band is a:

Question # 9

The value of relative permittivity of different dielectrics are:

Question # 10

Another mean of electric potential energy per unit charge is given by:

Question # 11

In gases, the charge carries are:

Question # 12

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

Question # 13

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

Question # 14

An example of photoconductor is:

Question # 15

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

Question # 16

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

Question # 17

The interior of a hollow charged metal sphere is a region which:

Question # 18

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

Question # 19

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

Question # 20

Xerography means:

Question # 21

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

Question # 22

An important part of inkjet printer is:

Question # 23

The earth’s potential and potential at infinity are taken:

Question # 24

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

Question # 25

If the ends of a wire are connected to a battery an electric field E will be set up at:

Question # 26

Heating effect of current utilized in:

Question # 27

The magnitude of chemical Effects depends upon:

Question # 28

Selenium is:

Question # 29

Electric field lines emerge from the charge in:

Question # 30

Aluminum is a:

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Sr.# Question Answer
1 In case of metallic conductors, the charge carriers are
A. Protons
B. Electrons
C. Antiprotons
D. Positrons
2

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
3 Kirchhoff's first rule is also called:
A. Loop rule
B. Thumb rule
C. Point rule
D. Right hand rule
4 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
5

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

Cell

B.

Voltmeter

C.

Thermocouple

D.

Potentiometer
6 The electric flux through any surface depends upon:
A.

Intensity of electric field

B.

Area of the surface

C.

Angle between intensity and area

D.

All of these
7 As the current flows through the wire
A. It generates heat in the wire
B. It produces sound in the wire
C. Resistance of the wire decrease
D. Voltage across the ends is the increase
8

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

Decreasing from zero to maximum

B.

Increasing from zero to maximum

C.

Decreasing from maximum to zero

D.

Increasing from maximum to zero
9

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

Chemical energy

B.

Mechanical energy

C.

Heat energy

D.

Both (A) and (B)
10

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

Thermistor

B.

Thermometer

C.

Thermostat

D.

Thermocouple

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