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

A thermistor is a resistor which is:

Question # 2

Thermistors are prepared under

Question # 3

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

Question # 4

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

Question # 5

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

Question # 6

Xerography means:

Question # 7

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

Question # 8

The third band of the colour code:

Question # 9

Magnetic effect of current is used:

Question # 10

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

Question # 11

While finding the electric intensity at a point between two oppositely charged parallel plates, the Gaussian surface is taken in the form of a hollow:

Question # 12

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

Question # 13

The value of resistivity is the least for:

Question # 14

A field free region is found:

Question # 15

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

Question # 16

The electric flux through any surface depends upon:

Question # 17

An example of photoconductor is:

Question # 18

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

Question # 19

The value of relative permittivity of different dielectrics are:

Question # 20

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

Question # 21

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

Question # 22

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

Question # 23

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

Question # 24

In a metal, the valence electrons are:

Question # 25

The inkjet printer ejects a thin stream of:

Question # 26

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

Question # 27

The interior of a hollow charged metal sphere is a region which:

Question # 28

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

Question # 29

The charge carries in the electrolyte are:

Question # 30

The free electrons in metals:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 A rheostat can e used:
A. As variable resistor
B. As potential divider
C. For varying the current
D. All of these
2 The charge carriers in an electrolyte are
A. Positive ions
B. Negative ions
C. Either A or B
D. Both A and B
3 The current that flows through the coil of a motor causes
A. Its shaft to revolve
B. Its brushes to rotate
C. Motor to move
D. Its shaft to rotate
4 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
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 An eV is unit of:
A.

Potential

B.

Energy

C.

Work

D.

Power
7 An example of photoconductor is:
A.

Boron

B.

Carbon

C.

Iron

D.

Aluminum
8 An important part of photocopier is:
A.

Toner cartridge

B. Deflection plates

C.

Charging electrode

D.

Print head
9 The positive charge moving in one direction is equivalent in all external affects to a:
A.

Negative charge is moving in the same direction

B.

Positive charge is moving in the opposite direction

C.

Negative charge moving in the opposite direction

D.

Positive charges moving in the same direction
10

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

Chemical energy

B.

Mechanical energy

C.

Heat energy

D.

Both (A) and (B)

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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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