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

Question # 2

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 # 3

A rheostat can e used:

Question # 4

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

Question # 5

In case of metallic conductors, the charge carriers are

Question # 6

The third band of the colour code:

Question # 7

The inkjet printer ejects a thin stream of:

Question # 8

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

Question # 9

An ideal voltmeter has:

Question # 10

The obvious effect/s of current is/are:

Question # 11

The value of relative permittivity of different dielectrics are:

Question # 12

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

Question # 13

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

Question # 14

Magnetic effect of current is used:

Question # 15

As the current flows through the wire

Question # 16

Most practical applications of electricity involve

Question # 17

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

Question # 18

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

Question # 19

The current that flows through the coil of a motor causes

Question # 20

In a metal, the valence electrons are:

Question # 21

Which instrument is expensive and difficult to use?

Question # 22

The emf is measured in:

Question # 23

Heating effect of current utilized in:

Question # 24

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

Question # 25

The charge carriers in an electrolyte are

Question # 26

An example of photoconductor is:

Question # 27

The electric flux through any surface depends upon:

Question # 28

The value of resistivity is the least for:

Question # 29

In case of metallic conductors, the change carries are:

Question # 30

Thermistors are prepared under

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1

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

Different

B.

Same

C.

Such that it is greater in the first case

D.

Such that it is greater in the second case
2

The obvious effect/s of current is/are:
A.

Heating effect

B.

Magnetic effect

C.

Chemical effect

D.

Both (C) and (B)
3

Heating effect of current utilized in:
A.

Electric motor

B.

Electric toaster

C.

Electroplating

D.

Electric kettle
4

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

One coulomb

B.

0.5 coulomb

C.

30 coulomb

D.

2 coulombs
5 In case of metallic conductors, the charge carriers are
A. Protons
B. Electrons
C. Antiprotons
D. Positrons
6 SI unit of current describes the flow of charge at the rate of
A. One ampere per second
B. One coulomb per second
C. One electron per second
D. 6.25 x 1018electrons per second
7 In gases, the charge carries are:
A.

Electrons

B.

Positive ions

C.

Negative ions

D.

Both (A) and (C)
8 An electric field is generated along the wire when:
A.

Its resistance is very high

B.

A constant potential is maintained across the wire

C.

Net current through the wire is zero

D.

A constant potential difference is maintained across the wire
9 Which instrument is expensive and difficult to use?
A. Voltmeter
B. Potentiometer
C. CRO
D. Both A and C
10 When a constant potential difference is applied across the conductor, the drift velocity of electrons:
A.

Increases

B.

Decreases

C.

Remains the constant

D.

Either of these

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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