Category Current Electricity

Resistors color codes | Resistor colour codes chart | how to read resistors colour codes?

RESISTOR COLOUR CODES INTRODUCTION In the world of electronics, Resistors are being highly used in every branch of electricity. It is a very important component of an electronic kit, without it, you can’t even charge your smartphone or any electrical…

what is Resistors? | different types of resistor | applications and uses of resistor.

RESISTOR INTRODUCTION Have you seen any electric kit, if yes then, you must have seen that there are many electrical components on them? but do you know, which components are the most of them, in fact, most of them are…

Difference between resistance and resistivity in tabular form | class 12.

DIFFERENCE BETWEEN RESISTANCE AND RESISTIVITY In this article, we will discuss about the basic difference between the resistance and resistivity in a organised way. You will understand the underlying difference very clearly after going through this article. So stay tuned…

Resistance and resistivity | factors affecting resistance & resistivity | definition, formula, units, symbols.

RESISTANCE AND RESISTIVITY INTRODUCTION See, resistance is everywhere. Everything which is in our surroundings stop us do new things. So this acts like a resistance. Resistance means, anything which resist ours action. This is not only seen in electrical wires…

Ohm’s Law | statement and formula deduction class 12 | hydraulic analogue | magic triangle | experimental verification | limitations.

OHM’S LAW : BASICS If you think about electrical physics then you will find that in electrical physics there is only three basic things i.e voltage, current and resistance, without these three things study of electrical physics seems meaningless. These…

Drift velocity | definition | derivation | mobility | relation between drift velocity and electric current | class 12.

DRIFT VELOCITY : BASICS Until there is no electric field applied at the both end of the conductor till then all the free electrons inside the conductor keep moving randomly at Fermi velocity. If we find average velocity of these…

Electric current and current density | definition, formula, unit.

ELECTRIC CURRENT : THE BASIC CONCEPT INTRODUCTION Electric current is one of the most basic concepts that exists in electrical physics. It is the key point within the science of electricity because every electrical equipments are running due to electric…

Why does wires get hot or even melts, when a high current flow through them.?

HOW DOES RESISTANCE PRODUCED IN WIRES? Resistance is the very important term/topic of current electricity. Without resistance imagination of electric physics is just a time waste. So today we will talk about resistance in detail , so tuned with us…

what is potential difference? | Why electrons move when we supply electricity?

The concept of potential difference is very important topic of current electricity. If you didn’t know or understand this topic, then it is very difficult for you to give the explaination of the question, why does electrons move in electrical…