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

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

Question # 3

A thermistor is a resistor which is:

Question # 4

The inkjet printer ejects a thin stream of:

Question # 5

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

Question # 6

Xerography means:

Question # 7

Aluminum is a:

Question # 8

Which instrument is expensive and difficult to use?

Question # 9

The flux through a closed surface depends upon:

Question # 10

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

Question # 11

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

Question # 12

The value of resistivity is the least for:

Question # 13

An inkjet printer uses in its operation:

Question # 14

The charge carriers in an electrolyte are

Question # 15

Electric field lines emerge from the charge in:

Question # 16

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

Question # 17

An example of photoconductor is:

Question # 18

The strength of magnetic field at certain points around a wire depends upon:

Question # 19

Static electricity is produced by the transfer of:

Question # 20

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

Question # 21

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

Question # 22

The current that flows through the coil of a motor causes

Question # 23

In a metal, the valence electrons are:

Question # 24

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

Question # 25

A field free region is found:

Question # 26

In case of metallic conductors, the charge carriers are

Question # 27

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

Question # 28

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

Question # 29

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

Question # 30

Another mean of electric potential energy per unit charge is given by:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1

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)
2 Which of the following substances has got positive temperature coefficient of resistance?
A. Carbon
B. Germanium
C. Silicon
D. Aluminium
3

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)
4 A thermistor is a resistor which is:
A. Light Sensitive
B. Heat Sensitive
C. Sound Sensitive
D. All of these
5 The passage of current is accompanied by a magnetic field in the surrounding space:
A.

Always accompanied

B.

Sometimes accompanied

C.

Never accompanied

D. Any of above
6 An important part of inkjet printer is:
A. Toner
B.

Drum

C.

Deflection plates

D.

Heated roles
7

The magnitude of chemical Effects depends upon:
A.

Nature of liquid

B.

Quantity of Electricity passed through the liquid

C.

Color of the liquid

D.

Both (A) and (C)
8 The fourth band is a:
A. Silver band
B. Red band
C. Gold band
D. Either A or C
9

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

Be zero

B.

Be maintained constant

C.

Goes on increasing

D.

Go on decreasing
10 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

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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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