Welcome to resistor world
Resistor is a basic element in an electrical circuit. Its role is to resist the flow of current though the wire. It is one of the simplest components available to learn.
However, to get a pictorial understanding of functionality of this component is extremely important. This article ties to explain the basic operation of a resistor using graphical and animated contents.
Taking a look at how the current flows in an electrical circuit.
A conductor has got many electrons which are available to travel from one place to another. However, they require some motivation to move.
The motivation can be in the form of potential difference or temperature. In the this section we will discuss how the charges travel in the conducting wire.
Imagine a cylindrical conducting wire which is very thin and can only hold one charge along its radius. As shown in the figure/animation below.
This imaginary wire has some fixed positions where the charges can enter and exit.
In a random situation assume that each of these fixed positions have a charge in them.
Check the following animation for more clarity.