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

In case of metallic conductors, the charge carriers are

Question # 2

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

Question # 3

In case of metallic conductors, the change carries are:

Question # 4

As the current flows through the wire

Question # 5

In a metal, the valence electrons are:

Question # 6

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

Question # 7

The magnitude of chemical Effects depends upon:

Question # 8

The charge carriers in an electrolyte are

Question # 9

In order to have a constant current through wire, the potential difference across its end should:

Question # 10

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

Question # 11

In gases, the charge carriers are:

Question # 12

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

Question # 13

Gaussian surface is always:

Question # 14

Most practical applications of electricity involve

Question # 15

An ideal voltmeter has:

Question # 16

In a metal, the valence electrons are:

Question # 17

Heating effect of current utilized in:

Question # 18

An example of photoconductor is:

Question # 19

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

Question # 20

Selenium is:

Question # 21

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

Question # 22

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

Question # 23

The fourth band is a:

Question # 24

The charge carries in the electrolyte are:

Question # 25

The value of relative permittivity of different dielectrics are:

Question # 26

Which instrument is expensive and difficult to use?

Question # 27

Field lines are closer to each other in the region where the field is:

Question # 28

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

Question # 29

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

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 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
2 Gaussian surface is always:
A.

Rectangular

B.

Spherical

C.

Cylindrical

D.

Box shape
3

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

Primary cell

B.

Secondary cell

C.

Both (A) and (B)

D.

Photovoltaic cell
4 When certain area A is held parallel to the field lines, then:
A.

No lines cross this area

B.

Maximum lines pass through this area

C.

The number of lines are between zero and maximum

D.

Both (A) and (B) correct
5 Field lines are closer to each other in the region where the field is:
A.

Stronger

B.

Weaker

C.

Much weaker

D.

Absent
6

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)
7

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

Thermistor

B.

Thermometer

C.

Thermostat

D.

Thermocouple
8

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

Both the conductors are at the same potential

B.

Potential difference across the conductors remain constant

C.

Potential difference across the conductors becomes zero

D.

Both (A) and (B)
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 An ideal voltmeter has:
A. Zero resistance
B. Small resistance
C. Large resistance
D. Infinite resistance

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