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

Aluminum is a:

Question # 2

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

Question # 3

A field free region is found:

Question # 4

The electric flux through any surface depends upon:

Question # 5

An ideal voltmeter has:

Question # 6

An example of photoconductor is:

Question # 7

Electrolysis is the study of conduction of electricity through:

Question # 8

An important part of inkjet printer is:

Question # 9

As the current flow through the wire:

Question # 10

Gaussian surface is always:

Question # 11

The value of resistivity is the least for:

Question # 12

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

Question # 13

In gases, the charge carriers are:

Question # 14

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

Question # 15

The free electrons in metals:

Question # 16

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

Question # 17

Most practical application of electricity involve

Question # 18

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

Question # 19

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

Question # 20

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

Question # 21

The third band of the colour code:

Question # 22

The charge carries in the electrolyte are:

Question # 23

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

Question # 24

The magnitude of chemical Effects depends upon:

Question # 25

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

Question # 26

The charge carriers in an electrolyte are

Question # 27

Heating effect of current utilized in:

Question # 28

The obvious effect/s of current is/are:

Question # 29

In a metal, the valence electrons are:

Question # 30

Kirchhoff's first rule is also called:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 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)
2 The third band of the colour code:
A. Gives the number of zeroes
B. Is decimal multiplier
C. Gives the resistance tolerance
D. Gives the third digit
3

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

At rest

B.

At rest under the action of electric forces

C.

In motion under the action of electric forces

D.

In motion
4 A field free region is found:
A.

Near the outer surface of a hollow charged metal sphere

B.

In the interior of solid metal uncharged sphere

C.

In the interior of solid metal charged sphere

D.

Both (A) and (B)
5

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

Greater than the speed at which they pass from left to right

B.

Less than the speed at which they pass from left to right

C.

The same speed at which they pass from left to right

D.

Any of above
6 The value of relative permittivity of different dielectrics are:
A.

Equal

B.

Different

C.

Greater than one

D.

Smaller than one
7

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)
8 The quantity having the same unit as that of emf is:
A. Force
B. Energy
C. Potential
D. Current
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 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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