what is the difference between the resisters and current
Answers
When beginning to explore the world of electricity and electronics, it is vital to start by understanding the basics of voltage, current, and resistance. These are the three basic building blocks required to manipulate and utilize electricity. At first, these concepts can be difficult to understand because we cannot "see" them. One cannot see with the naked eye the energy flowing through a wire or the voltage of a battery sitting on a table. Even the lightning in the sky, while visible, is not truly the energy exchange happening from the clouds to the earth, but a reaction in the air to the energy passing through it. In order to detect this energy transfer, we must use measurement tools such as multimeters, spectrum analyzers, and oscilloscopes to visualize what is happening with the charge in a system. Fear not, however, this tutorial will give you the basic understanding of voltage, current, and resistance and how the three relate to each other.
Current
Current is a measure of the flow of electric charge through a materialCurrent is defined as the amount of charge that flows through a conductor in a certain amount of time. The unit of current is the Ampere (A), which is equal to one Coulomb per second .
Resistivity
Some conductors carry charge more easily than others. The resistivity of a material describes how easily charge can flow. Good conductors have a small resistivity, and good insulators have a large resistivity. The resistivity ρ (the Greek letter "rho") is equal to magnitude of the electric field in the material divided by the current density,