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

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Question # 1

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

Question # 2

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

Question # 3

The value of relative permittivity of different dielectrics are:

Question # 4

A thermistor is a resistor which is:

Question # 5

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

Question # 6

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

Question # 7

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

Question # 8

An example of photoconductor is:

Question # 9

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

Question # 10

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

Question # 11

An inkjet printer uses in its operation:

Question # 12

Tick the correct statement:

Question # 13

The quantity having the same unit as that of emf is:

Question # 14

In gases, the charge carriers are:

Question # 15

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

Question # 16

Kirchhoff's first rule is also called:

Question # 17

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

Question # 18

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

Question # 19

In case of metallic conductors, the charge carriers are

Question # 20

Xerography means:

Question # 21

The inkjet printer ejects a thin stream of:

Question # 22

A rheostat can e used:

Question # 23

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

Question # 24

Thermistors are prepared under

Question # 25

The current that flows through the coil of a motor causes:

Question # 26

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

Question # 27

In a metal, the valence electrons are:

Question # 28

Electric field lines emerge from the charge in:

Question # 29

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 # 30

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

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 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
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:
A.

Circle

B.

Rectangle

C.

Sphere

D.

Box
3

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

Cell

B.

Voltmeter

C.

Thermocouple

D.

Potentiometer
4 The emf is measured in:
A. Newton
B. Volt
C. J/C
D. Both A and B
5 Aluminum is a:
A.

Good insulator

B.

Bad conductor

C.

Both (A) and (B)

D.

Excellent conductor
6 The flux through a closed surface depends upon:
A.

Shape of geometry of the closed surface

B.

Charge enclosed

C.

Nature of the medium

D.

Both (A) and (B)
7 The best conductor is:
A. Silver
B. Copper
C. Aluminimum
D. Both B and C
8 The value of relative permittivity of different dielectrics are:
A.

Equal

B.

Different

C.

Greater than one

D.

Smaller than one
9 The fourth band is a:
A. Silver band
B. Red band
C. Gold band
D. Either A or C
10

Heating effect of current utilized in:
A.

Electric motor

B.

Electric toaster

C.

Electroplating

D.

Electric kettle

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