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

The value of resistivity is the least for:

Question # 2

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

Question # 3

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

Question # 4

In a metal, the valence electrons are:

Question # 5

Most practical applications of electricity involve

Question # 6

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

Question # 7

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

Question # 8

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 # 9

An example of photoconductor is:

Question # 10

Selenium is:

Question # 11

In case of metallic conductors, the change carries are:

Question # 12

Electric flux is:

Question # 13

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

Question # 14

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

Question # 15

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 # 16

An eV is unit of:

Question # 17

Tick the correct statement:

Question # 18

The strength of magnetic field at certain points around a wire depends upon:

Question # 19

The fourth band is a:

Question # 20

The free electrons in metals:

Question # 21

Xerography means:

Question # 22

A thermistor is a resistor which is:

Question # 23

As the current flows through the wire

Question # 24

In a metal, the valence electrons are:

Question # 25

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

Question # 26

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

Question # 27

The magnitude of chemical Effects depends upon:

Question # 28

A rheostat can e used:

Question # 29

Electric field lines emerge from the charge in:

Question # 30

An important part of photocopier is:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 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)
2 Selenium is:
A.

An insulator

B.

A conductor

C.

Insulator in the dark and becomes conductor when exposed to light

D.

Conductor in the dark only
3 An important part of inkjet printer is:
A. Toner
B.

Drum

C.

Deflection plates

D.

Heated roles
4 Electrolysis is the study of conduction of electricity through:
A. Solids
B. Liquids
C. Gases
D. Plasma
5

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
6

Flux through a closed surface of any shape and flux through the surface of a sphere drawn around a charge are:
A.

Different

B.

Same

C.

Such that it is greater in the first case

D.

Such that it is greater in the second case
7

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
8 Which of the following substances has got positive temperature coefficient of resistance?
A. Carbon
B. Germanium
C. Silicon
D. Aluminium
9 A thermistor is a resistor which is:
A. Light Sensitive
B. Heat Sensitive
C. Sound Sensitive
D. All of these
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

Test Questions