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

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 # 2

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

Question # 3

As the current flow through the wire:

Question # 4

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

Question # 5

The value of relative permittivity of different dielectrics are:

Question # 6

Most practical application of electricity involve

Question # 7

In case of metallic conductors, the charge carriers are

Question # 8

In case of metallic conductors, the charge carriers are

Question # 9

Selenium is:

Question # 10

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

Question # 11

The charge carries in the electrolyte are:

Question # 12

Which of the following substances has got positive temperature coefficient of resistance?

Question # 13

Aluminum is a:

Question # 14

If the ends of a wire are connected to a battery an electric field E will be set up at:

Question # 15

The flux through a closed surface depends upon:

Question # 16

An eV is unit of:

Question # 17

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

Question # 18

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

Question # 19

A rheostat can e used:

Question # 20

In gases, the charge carries are:

Question # 21

Most practical applications of electricity involve

Question # 22

The value of resistivity is the least for:

Question # 23

An important part of photocopier is:

Question # 24

The surface destiny of charge is defined is:

Question # 25

In gases, the charge carriers are:

Question # 26

The current that flows through the coil of a motor causes:

Question # 27

Electric flux is:

Question # 28

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

Question # 29

In a metal, the valence electrons are:

Question # 30

In a metal, the valence electrons are:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 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
2 Electric field lines emerge from the charge in:
A.

One dimension

B.

Two dimensions

C.

Three dimensions

D.

Four dimensions
3

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

Zero

B.

Much larger

C.

Larger

D.

Smaller
4 Magnetic effect of current is used:
A.

In electric motor

B.

To detect current

C.

To measure current

D.

All of these
5 The emf is measured in:
A. Newton
B. Volt
C. J/C
D. Both A and B
6 The term drift velocity is used when the ends of a wire are:
A.

Connected to a laser source

B.

Connected to a voltage source

C.

Not connected to a voltage source

D.

At different values of potential
7 Gaussian surface is always:
A.

Rectangular

B.

Spherical

C.

Cylindrical

D.

Box shape
8 Aluminum is a:
A.

Good insulator

B.

Bad conductor

C.

Both (A) and (B)

D.

Excellent conductor
9

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)
10 In gases, the charge carriers are:
A. Electrons
B. Positive ions
C. Negative ions
D. Both A and C

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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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