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 value of relative permittivity of different dielectrics are:

Question # 2

A rheostat can e used:

Question # 3

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

Question # 4

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

Question # 5

As the current flow through the wire:

Question # 6

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

Question # 7

Heating effect of current utilized in:

Question # 8

Electric flux is:

Question # 9

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

Question # 10

An example of photoconductor is:

Question # 11

The current that flows through the coil of a motor causes

Question # 12

The magnitude of chemical Effects depends upon:

Question # 13

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 # 14

Gaussian surface is always:

Question # 15

Which instrument is expensive and difficult to use?

Question # 16

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

Question # 17

The fourth band is a:

Question # 18

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

Question # 19

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

Question # 20

An inkjet printer uses in its operation:

Question # 21

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

Question # 22

In case of two identical charges placed certain distance apart, the electric field lines are:

Question # 23

Kirchhoff's first rule is also called:

Question # 24

Electric field lines emerge from the charge in:

Question # 25

An electric field is generated along the wire when:

Question # 26

In case of metallic conductors, the change carries are:

Question # 27

In gases, the charge carriers are:

Question # 28

In a metal, the valence electrons are:

Question # 29

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

Question # 30

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

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 A thermistor is a resistor which is:
A. Light Sensitive
B. Heat Sensitive
C. Sound Sensitive
D. All of these
2 Gaussian surface is always:
A.

Rectangular

B.

Spherical

C.

Cylindrical

D.

Box shape
3 Tick the correct statement:
A.

Both the potential and potential difference is scalars

B.

Potential is a scalar but potential difference is a vector

C. Both are vectors

D.

Potential is vector but potential difference is scalar
4

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)
5 In gases, the charge carries are:
A.

Electrons

B.

Positive ions

C.

Negative ions

D.

Both (A) and (C)
6 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
7 The value of relative permittivity of different dielectrics are:
A.

Equal

B.

Different

C.

Greater than one

D.

Smaller than one
8 The earth’s potential and potential at infinity are taken:
A.

Equal

B.

Zero

C.

First is greater than the second

D.

Second is greater than the first
9 Electric field lines emerge from the charge in:
A.

One dimension

B.

Two dimensions

C.

Three dimensions

D.

Four dimensions
10

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

Heating effect

B.

Magnetic effect

C.

Chemical effect

D.

Both (C) and (B)

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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