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

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

Question # 2

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

Question # 3

The fourth band is a:

Question # 4

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

Question # 5

The best conductor is:

Question # 6

Aluminum is a:

Question # 7

In a metal, the valence electrons are:

Question # 8

The magnitude of chemical Effects depends upon:

Question # 9

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

Question # 10

An important part of photocopier is:

Question # 11

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

Question # 12

Xerography means:

Question # 13

In gases, the charge carriers are:

Question # 14

In gases, the charge carries are:

Question # 15

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

Question # 16

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

Question # 17

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

Question # 18

Which instrument is expensive and difficult to use?

Question # 19

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

Question # 20

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

Question # 21

The inkjet printer ejects a thin stream of:

Question # 22

An example of photoconductor is:

Question # 23

An electric field is generated along the wire when:

Question # 24

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

Question # 25

Electrostatics is the branch of physics which deals with the study of electro charges:

Question # 26

The charge carries in the electrolyte are:

Question # 27

The value of resistivity is the least for:

Question # 28

In case of metallic conductors, the change carries are:

Question # 29

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

Question # 30

The free electrons in metals:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 Most practical applications of electricity involve
A. Charges at rest
B. Charges in motion
C. Electrons at rest
D. Atoms in motion
2

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

Thermistor

B.

Thermometer

C.

Thermostat

D.

Thermocouple
3 Kirchhoff's first rule is also called:
A. Loop rule
B. Thumb rule
C. Point rule
D. Right hand rule
4 The value of resistivity is the least for:
A. Copper
B. Aluminimum
C. Silver
D. Tungsten
5 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)
6 Magnetic effect of current is used:
A.

In electric motor

B.

To detect current

C.

To measure current

D.

All of these
7 Another mean of electric potential energy per unit charge is given by:
A.

Electric intensity

B.

Potential gradient

C.

Electric Flux

D.

Potential difference
8 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
9 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
10 Electrolysis is the study of conduction of electricity through:
A. Solids
B. Liquids
C. Gases
D. Plasma

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  • Hamza

    Hamza

    17 Aug 2019

    It has many error

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  • Salmankhan

    Salmankhan

    02 Feb 2018

    Sir g plz correct this mcq the device which convert electrical into machinical is called moter but here the answer is generator

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