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

Question # 2

The obvious effect/s of current is/are:

Question # 3

Static electricity is produced by the transfer of:

Question # 4

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

Question # 5

Which instrument is expensive and difficult to use?

Question # 6

The surface destiny of charge is defined is:

Question # 7

The magnitude of chemical Effects depends upon:

Question # 8

An important part of inkjet printer is:

Question # 9

The third band of the colour code:

Question # 10

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

Question # 11

In gases, the charge carries are:

Question # 12

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

Question # 13

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

Question # 14

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

Question # 15

In a metal, the valence electrons are:

Question # 16

The value of resistivity is the least for:

Question # 17

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

Question # 18

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

Question # 19

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

Question # 20

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

Question # 21

Selenium is:

Question # 22

Gaussian surface is always:

Question # 23

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

Question # 24

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 # 25

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

Question # 26

Tick the correct statement:

Question # 27

A thermistor is a resistor which is:

Question # 28

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

Question # 29

An electric field is generated along the wire when:

Question # 30

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

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1

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:
A.

Circle

B.

Rectangle

C.

Sphere

D.

Box
2 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)
3 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
4 In case of metallic conductors, the charge carriers are
A. Protons
B. Electrons
C. Antiprotons
D. Positrons
5 As the current flow through the wire:
A.

It generates heat in the wire

B.

It produces sound in the wire

C.

Resistance of the wire decreases

D.

Voltage across the ends is increased
6 The interior of a hollow charged metal sphere is a region which:
A.

Contain some magnitude of electric field

B.

Is full of electric field lines

C.

Is field-free region

D.

Either (A) or (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 Most practical application of electricity involve
A.

Charges at the rest

B.

Charges in the motion

C.

Electrons at rest

D.

Atoms in motion
9 As the current flows through the wire
A. It generates heat in the wire
B. It produces sound in the wire
C. Resistance of the wire decrease
D. Voltage across the ends is the increase
10 Gaussian surface is always:
A.

Rectangular

B.

Spherical

C.

Cylindrical

D.

Box shape

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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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