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

Electric flux is:

Question # 2

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

Question # 3

The charge carries in the electrolyte are:

Question # 4

An electric field is generated along the wire when:

Question # 5

As the current flow through the wire:

Question # 6

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

Question # 7

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

Question # 8

The surface destiny of charge is defined is:

Question # 9

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

Question # 10

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

Question # 11

Xerography means:

Question # 12

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

Question # 13

Conversion of chemical energy to electrical energy can be achieved by:

Question # 14

A rheostat can e used:

Question # 15

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

Question # 16

The free electrons in metals:

Question # 17

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

Question # 18

The magnitude of chemical Effects depends upon:

Question # 19

Static electricity is produced by the transfer of:

Question # 20

In a metal, the valence electrons are:

Question # 21

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

Question # 22

An eV is unit of:

Question # 23

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

Question # 24

Aluminum is a:

Question # 25

An important part of photocopier is:

Question # 26

The third band of the colour code:

Question # 27

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

Question # 28

The flux through a closed surface depends upon:

Question # 29

Electric field lines emerge from the charge in:

Question # 30

In a metal, the valence electrons are:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 The value of relative permittivity of different dielectrics are:
A.

Equal

B.

Different

C.

Greater than one

D.

Smaller than one
2 A rheostat can e used:
A. As variable resistor
B. As potential divider
C. For varying the current
D. All of these
3

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

Cell

B.

Voltmeter

C.

Thermocouple

D.

Potentiometer
4

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
5 An important part of inkjet printer is:
A. Toner
B.

Drum

C.

Deflection plates

D.

Heated roles
6 In case of metallic conductors, the charge carriers are
A. Protons
B. Electrons
C. Antiprotons
D. Positrons
7 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)
8

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)
9 Which of the following substances has got positive temperature coefficient of resistance?
A. Carbon
B. Germanium
C. Silicon
D. Aluminium
10 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

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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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