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

Kirchhoff's first rule is also called:

Question # 2

Gaussian surface is always:

Question # 3

The surface destiny of charge is defined is:

Question # 4

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

Question # 5

A thermistor is a resistor which is:

Question # 6

A field free region is found:

Question # 7

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

Question # 8

Xerography means:

Question # 9

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

Question # 10

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

Question # 11

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

Question # 12

Which instrument is expensive and difficult to use?

Question # 13

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

Question # 14

In case of metallic conductors, the change carries are:

Question # 15

The emf is measured in:

Question # 16

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

Question # 17

In a metal, the valence electrons are:

Question # 18

In gases, the charge carriers are:

Question # 19

In case of two identical charges placed certain distance apart, the electric field lines are:

Question # 20

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

Question # 21

Thermistors are prepared under

Question # 22

Electric field lines emerge from the charge in:

Question # 23

In a metal, the valence electrons are:

Question # 24

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

Question # 25

The electric flux through any surface depends upon:

Question # 26

An example of photoconductor is:

Question # 27

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 # 28

An eV is unit of:

Question # 29

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

Question # 30

The charge carriers in an electrolyte are

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 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
2

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

Thermistor

B.

Thermometer

C.

Thermostat

D.

Thermocouple
3 Field lines are closer to each other in the region where the field is:
A.

Stronger

B.

Weaker

C.

Much weaker

D.

Absent
4 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
5 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
6

Heating effect of current utilized in:
A.

Electric motor

B.

Electric toaster

C.

Electroplating

D.

Electric kettle
7 A current of 1 ampere is passing through a conductor. The charge passing through it in half a minute s
A. One coulomb
B. 0.5 coulomb
C. 30 coulombs
D. 2 coulombs
8 If the ends of a wire are connected to a battery an electric field E will be set up at:
A.

The ends of the wire only

B.

Mid points of the wire only

C.

Every point within the wire

D.

At nodes only
9 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)
10

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

Zero

B.

Much larger

C.

Larger

D.

Smaller

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