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

Question # 2

Gaussian surface is always:

Question # 3

Tick the correct statement:

Question # 4

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

Question # 5

In a metal, the valence electrons are:

Question # 6

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

Question # 7

A thermistor is a resistor which is:

Question # 8

The inkjet printer ejects a thin stream of:

Question # 9

The electric flux through any surface depends upon:

Question # 10

The fourth band is a:

Question # 11

As the current flow through the wire:

Question # 12

The third band of the colour code:

Question # 13

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

Question # 14

A rheostat can e used:

Question # 15

In case of metallic conductors, the charge carriers are

Question # 16

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

Question # 17

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

Question # 18

An ideal voltmeter has:

Question # 19

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

Question # 20

The obvious effect/s of current is/are:

Question # 21

An eV is unit of:

Question # 22

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

Question # 23

Selenium is:

Question # 24

In case of metallic conductors, the charge carriers are

Question # 25

Thermistors are prepared under

Question # 26

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

Question # 27

Electrolysis is the study of conduction of electricity through:

Question # 28

Aluminum is a:

Question # 29

An important part of inkjet printer is:

Question # 30

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

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 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
2 The interior of a hollow charged metal sphere is a region which:
A.

Contain some magnitude of electric field

B.

Is full of electric field lines

C.

Is field-free region

D.

Either (A) or (B)
3 The term drift velocity is used when the ends of a wire are:
A.

Connected to a laser source

B.

Connected to a voltage source

C.

Not connected to a voltage source

D.

At different values of potential
4 The best conductor is:
A. Silver
B. Copper
C. Aluminimum
D. Both B and C
5 An eV is unit of:
A.

Potential

B.

Energy

C.

Work

D.

Power
6

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

Cell

B.

Voltmeter

C.

Thermocouple

D.

Potentiometer
7 Gaussian surface is always:
A.

Rectangular

B.

Spherical

C.

Cylindrical

D.

Box shape
8

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

Straight lines

B.

Sine curves

C.

Curved

D.

Both (A) and (B)
9 Which instrument is expensive and difficult to use?
A. Voltmeter
B. Potentiometer
C. CRO
D. Both A and C
10

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

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