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

A rheostat can e used:

Question # 2

Aluminum is a:

Question # 3

The free electrons in metals:

Question # 4

In gases, the charge carriers are:

Question # 5

As the current flow through the wire:

Question # 6

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 # 7

The surface destiny of charge is defined is:

Question # 8

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

Question # 9

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

Question # 10

In a metal, the valence electrons are:

Question # 11

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

Question # 12

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

Question # 13

The emf is measured in:

Question # 14

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

Question # 15

The current that flows through the coil of a motor causes

Question # 16

When certain area A is held parallel to the field lines, then:

Question # 17

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

Question # 18

The best conductor is:

Question # 19

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

Question # 20

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

Question # 21

In case of metallic conductors, the charge carriers are

Question # 22

Tick the correct statement:

Question # 23

The value of resistivity is the least for:

Question # 24

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

Question # 25

The fourth band is a:

Question # 26

An ideal voltmeter has:

Question # 27

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

Question # 28

The electric flux through any surface depends upon:

Question # 29

The effects of bends in a wire on its electrical resistance are:

Question # 30

Selenium is:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 Field lines are closer to each other in the region where the field is:
A.

Stronger

B.

Weaker

C.

Much weaker

D.

Absent
2

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
3

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

Decreasing from zero to maximum

B.

Increasing from zero to maximum

C.

Decreasing from maximum to zero

D.

Increasing from maximum to zero
4 In gases, the charge carriers are:
A. Electrons
B. Positive ions
C. Negative ions
D. Both A and C
5 In a metal, the valence electrons are:
A.

Attach to individual atoms

B.

Not attached to individual atoms

C.

Free to move within the metal

D.

Both (A) and (C)
6

An inkjet printer uses in its operation:
A.

Neutrons only

B.

Mesons only

C.

Positrons and photons

D.

An electric charge
7 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
8

The charge carries in the electrolyte are:
A.

Positive ions

B.

Negative ions

C.

Either (A) or (B)

D.

Both (A) and (B)
9 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
10 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)

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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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