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

Question # 2

Selenium is:

Question # 3

In case of metallic conductors, the change carries are:

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

The value of resistivity is the least for:

Question # 8

The inkjet printer ejects a thin stream of:

Question # 9

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

Question # 10

As the current flow through the wire:

Question # 11

The flux through a closed surface depends upon:

Question # 12

Electric field lines emerge from the charge in:

Question # 13

In a metal, the valence electrons are:

Question # 14

An example of photoconductor is:

Question # 15

As the current flows through the wire

Question # 16

The third band of the colour code:

Question # 17

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

Question # 18

When certain area A is held parallel to the field lines, then:

Question # 19

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

Question # 20

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

Question # 21

Thermistors are prepared under

Question # 22

Electrolysis is the study of conduction of electricity through:

Question # 23

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

Question # 24

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

Question # 25

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 # 26

A rheostat can e used:

Question # 27

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

Question # 28

The electric flux through any surface depends upon:

Question # 29

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

Question # 30

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

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 When resistance of a current carrying wire increases due to rise in temperature, the drift velocity of electrons:
A.

Decreases

B.

Increases

C.

Remains the constant

D.

Either of these
2

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:
A.

Same

B.

Different

C.

Opposite to each other

D.

At 60º with each other
3 An important part of photocopier is:
A.

Toner cartridge

B. Deflection plates

C.

Charging electrode

D.

Print head
4 An ideal voltmeter has:
A. Zero resistance
B. Small resistance
C. Large resistance
D. Infinite resistance
5 Electric field lines emerge from the charge in:
A.

One dimension

B.

Two dimensions

C.

Three dimensions

D.

Four dimensions
6 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
7 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
8 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)
9 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
10 Field lines are closer to each other in the region where the field is:
A.

Stronger

B.

Weaker

C.

Much weaker

D.

Absent

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