What is a potential difference across an electric field?

Clear your concept what is a potential difference across an electric field? You can understand the potential difference by questioning yourself and visualizing it how does the wind blow from one place to another place. The wind blows from a higher pressure zone to a lower pressure zone, the factors which maintain atmospheric pressure are humidity, dust, pollution etc. The atmospheric pressure is the pressure of air exerted by air all around us to our body. In Rajasthan during summer the sand existing in the Thar desert is heated, the sand mixes with surrounding air particles increase atmospheric pressure. The pressure of other area becomes lesser than this makes the gusty and dusty air flows from Rajasthan to other areas. The water flows from a higher altitude to a lower altitude. The matter flows from high concentration to lower concentration.

As the flow of wind required a pressure difference between two areas, the flow of liquid is needed the difference in altitudes and flow of matter is needed the difference in concentration, in the same way, the flow of charge is also needed an electric potential difference between two points.Now the question is what is the potential difference before we talk about potential difference let’s think what is a work in physics,it is simply defined as the product of force and displacement.

Also, Study our posts

Electric Current and its Heating Effect

Complete Detail of Electric Resistence and Conductance

NCERT solutions of class 10 science chapter 12- Electricity

Human Eye – Structure and functions of each part

Myopia, Hypermetropia and Presbyopia

Why do the star twinkle ?

What is God particle ?

NEET Sylabus and its preparation

Here, the points are discussed as follows.

Potential Energy in gravitational and Electrical fields
Electrical Potential
Electrical Potential Difference
The causes of lightning and thunder

What is a potential difference across an electric field?

Click for online shopping

Future Study Point.Deal: Cloths, Laptops, Computers, Mobiles, Shoes etc

Let an object of mass m is lifted up to the height of h, then the work is done =F.d. Here F = gravitational force applied by the earth on the object= mg, g = gravitational acceleration and d= h

The work is done = mg.h

Now we shall talk about what is energy, energy is defined as the capacity of doing work, or it is simply a transfer of energy from one object to another object. The work done on the given object when lifted to a certain height h is the energy transferred to the object from the person who lifts the object. Initially, when the object was on the ground, its energy was accommodated into the earth, so at the ground, its energy is supposed as zero. In the height of h the energy of object = mgh, the object is stationary so this energy is the potential energy of the object.

Here we can say the potential of point B, is mgh in a gravitational field.

Now we will discuss the electric potential of a point in an electric field, The electric potential of a point in an electric field is the work done on a unit charge while displacing it from infinity to that point. The electric field could be supposed in solids, liquids, gas or anywhere within the universe. For defining the electric potential of a point we need a point of reference, we take that point of reference infinity, the electric potential of the infinity is supposed as zero. The electric potential of two points in an electric field from the same point of reference (i.e infinity) causes the flow of electric current that is known as electric potential difference or simply the potential difference between those points. The electric potential of a point within the electric field is actually the capacity of a charged particle to move within an electric field.

Electric potential difference across a conductor, V = V_A – V_B

Where V_A – V_B are the potential of both ends of the conductor

A unit charge is = 1 coulomb charge

The work is done on a 1-coulomb charge = V

The work is done on charge Q in placing it from A to B will be

W = VQ

$\therefore V=\frac{W}{Q}$

How does electric potential difference generate between clouds and the earth? The water vapor rises above in the sky because it is hotter than the air in the earth when it loses its energy, the temperature reaches to below freezing temperatures and water vapor changes into tiny crystals of the ice. The frictions between the crystals generated electrons and two kinds of charged particles are formed, the negative charge heavier than positive sink below at the bottom of the cloud. An electric potential difference generated due to opposite charges within the clouds which causes flow of the current inside the cloud, when this voltage is in excess, lightning and thunder is produced.

You can see the video to understand it deeply

Sometimes when some shorts of positive charge is generated on the surface of the earth, a high potential difference developed between clouds and the earth which results in large amount of current flow from cloud to the earth which is capable to glow 100 w of bulb for 100 days, it is known as fall of lightning.

The Importance of Studying this post

The topic Potential difference is useful for clearing the scientific concepts of Electricity which is one of the chapters of every 10-grade student of each type of educational board.To clear the concept on potential difference is necessary for studying higher class ‘Electricity’ a branch of Physics.

We will be carrying on such interesting topics for helping you in your study, so please tell us how did you like this post. Please don’t forget to subscribe to this blog for getting to be updated if you liked it .

NCERT Solutions of Science and Maths for Class 9,10,11 and 12

NCERT Solutions for class 9 maths

Chapter 1- Number System	Chapter 9-Areas of parallelogram and triangles
Chapter 2-Polynomial	Chapter 10-Circles
Chapter 3- Coordinate Geometry	Chapter 11-Construction
Chapter 4- Linear equations in two variables	Chapter 12-Heron’s Formula
Chapter 5- Introduction to Euclid’s Geometry	Chapter 13-Surface Areas and Volumes
Chapter 6-Lines and Angles	Chapter 14-Statistics
Chapter 7-Triangles	Chapter 15-Probability
Chapter 8- Quadrilateral

NCERT Solutions for class 9 science

Chapter 1-Matter in our surroundings	Chapter 9- Force and laws of motion
Chapter 2-Is matter around us pure?	Chapter 10- Gravitation
Chapter3- Atoms and Molecules	Chapter 11- Work and Energy
Chapter 4-Structure of the Atom	Chapter 12- Sound
Chapter 5-Fundamental unit of life	Chapter 13-Why do we fall ill ?
Chapter 6- Tissues	Chapter 14- Natural Resources
Chapter 7- Diversity in living organism	Chapter 15-Improvement in food resources
Chapter 8- Motion	Last years question papers & sample papers

NCERT Solutions for class 10 maths

Chapter 1-Real number	Chapter 9-Some application of Trigonometry
Chapter 2-Polynomial	Chapter 10-Circles
Chapter 3-Linear equations	Chapter 11- Construction
Chapter 4- Quadratic equations	Chapter 12-Area related to circle
Chapter 5-Arithmetic Progression	Chapter 13-Surface areas and Volume
Chapter 6-Triangle	Chapter 14-Statistics
Chapter 7- Co-ordinate geometry	Chapter 15-Probability
Chapter 8-Trigonometry

CBSE Class 10-Question paper of maths 2021 with solutions

CBSE Class 10-Half yearly question paper of maths 2020 with solutions

CBSE Class 10 -Question paper of maths 2020 with solutions

CBSE Class 10-Question paper of maths 2019 with solutions

NCERT Solutions for Class 10 Science

Chapter 1- Chemical reactions and equations	Chapter 9- Heredity and Evolution
Chapter 2- Acid, Base and Salt	Chapter 10- Light reflection and refraction
Chapter 3- Metals and Non-Metals	Chapter 11- Human eye and colorful world
Chapter 4- Carbon and its Compounds	Chapter 12- Electricity
Chapter 5-Periodic classification of elements	Chapter 13-Magnetic effect of electric current
Chapter 6- Life Process	Chapter 14-Sources of Energy
Chapter 7-Control and Coordination	Chapter 15-Environment
Chapter 8- How do organisms reproduce?	Chapter 16-Management of Natural Resources

NCERT Solutions for class 11 maths

Chapter 1-Sets	Chapter 9-Sequences and Series
Chapter 2- Relations and functions	Chapter 10- Straight Lines
Chapter 3- Trigonometry	Chapter 11-Conic Sections
Chapter 4-Principle of mathematical induction	Chapter 12-Introduction to three Dimensional Geometry
Chapter 5-Complex numbers	Chapter 13- Limits and Derivatives
Chapter 6- Linear Inequalities	Chapter 14-Mathematical Reasoning
Chapter 7- Permutations and Combinations	Chapter 15- Statistics
Chapter 8- Binomial Theorem	Chapter 16- Probability

CBSE Class 11-Question paper of maths 2015

CBSE Class 11 – Second unit test of maths 2021 with solutions

NCERT solutions for class 12 maths

Chapter 1-Relations and Functions	Chapter 9-Differential Equations
Chapter 2-Inverse Trigonometric Functions	Chapter 10-Vector Algebra
Chapter 3-Matrices	Chapter 11 – Three Dimensional Geometry
Chapter 4-Determinants	Chapter 12-Linear Programming
Chapter 5- Continuity and Differentiability	Chapter 13-Probability
Chapter 6- Application of Derivation	CBSE Class 12- Question paper of maths 2021 with solutions
Chapter 7- Integrals
Chapter 8-Application of Integrals