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

An important part of inkjet printer is:

Question # 2

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

Question # 3

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

Question # 4

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

Question # 5

A field free region is found:

Question # 6

Which instrument is expensive and difficult to use?

Question # 7

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

Question # 8

Xerography means:

Question # 9

The free electrons in metals:

Question # 10

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

Question # 11

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

Question # 12

The charge carriers in an electrolyte are

Question # 13

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

Question # 14

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

Question # 15

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

Question # 16

Tick the correct statement:

Question # 17

An example of photoconductor is:

Question # 18

In case of metallic conductors, the change carries are:

Question # 19

In a metal, the valence electrons are:

Question # 20

The fourth band is a:

Question # 21

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

Question # 22

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

Question # 23

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

Question # 24

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

Question # 25

In gases, the charge carriers are:

Question # 26

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

Question # 27

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

Question # 28

Selenium is:

Question # 29

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

Question # 30

In case of metallic conductors, the charge carriers are

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1

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

One coulomb

B.

0.5 coulomb

C.

30 coulomb

D.

2 coulombs
2 The value of resistivity is the least for:
A. Copper
B. Aluminimum
C. Silver
D. Tungsten
3 An eV is unit of:
A.

Potential

B.

Energy

C.

Work

D.

Power
4 Field lines are closer to each other in the region where the field is:
A.

Stronger

B.

Weaker

C.

Much weaker

D.

Absent
5 A current of 1 ampere is passing through a conductor. The charge passing through it in half a minute s
A. One coulomb
B. 0.5 coulomb
C. 30 coulombs
D. 2 coulombs
6 Magnetic effect of current is used:
A.

In electric motor

B.

To detect current

C.

To measure current

D.

All of these
7 The emf is measured in:
A. Newton
B. Volt
C. J/C
D. Both A and B
8 An important part of inkjet printer is:
A. Toner
B.

Drum

C.

Deflection plates

D.

Heated roles
9

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)
10

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

Thermistor

B.

Thermometer

C.

Thermostat

D.

Thermocouple

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