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

The effects of bends in a wire on its electrical resistance are:

Question # 2

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

Question # 3

In case of metallic conductors, the change carries are:

Question # 4

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

Question # 5

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

Question # 6

A thermistor is a resistor which is:

Question # 7

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

Question # 8

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

Question # 9

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

Question # 10

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

Question # 11

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

Question # 12

The third band of the colour code:

Question # 13

Electric field lines emerge from the charge in:

Question # 14

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

Question # 15

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

Question # 16

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

Question # 17

The inkjet printer ejects a thin stream of:

Question # 18

Selenium is:

Question # 19

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

Question # 20

In a metal, the valence electrons are:

Question # 21

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 # 22

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

Question # 23

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

Question # 24

Kirchhoff's first rule is also called:

Question # 25

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

Question # 26

An important part of photocopier is:

Question # 27

An ideal voltmeter has:

Question # 28

In a metal, the valence electrons are:

Question # 29

The free electrons in metals:

Question # 30

Which instrument is expensive and difficult to use?

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 The inkjet printer ejects a thin stream of:
A.

Water

B.

Oil

C.

Ink

D.

Any of above
2

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 shafts to rotate
3

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
4 Which instrument is expensive and difficult to use?
A. Voltmeter
B. Potentiometer
C. CRO
D. Both A and C
5 Thermistors are prepared under
A. High pressure and low temperature
B. High pressure and high temperature
C. Low pressure and low temperature
D. Low pressure and high temprature
6 The strength of magnetic field at certain points around a wire depends upon:
A.

Value of current passing

B.

Distance from the current element

C.

Color of the material

D.

Both (A) and (B)
7

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
8 If the ends of a wire are connected to a battery an electric field E will be set up at:
A.

The ends of the wire only

B.

Mid points of the wire only

C.

Every point within the wire

D.

At nodes only
9

Certain charge +q is placed at the center of a sphere. At each of the sphere,The directions of electric intensity and vector area are:
A.

Same

B.

Different

C.

Opposite to each other

D.

At 60º with each other
10

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

Decreasing from zero to maximum

B.

Increasing from zero to maximum

C.

Decreasing from maximum to zero

D.

Increasing from maximum to zero

Test Questions

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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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