please explain me ohms low with diagram and example
Answers
Ohm demonstrated that there are no "perfect" electrical conductors through a series of experiments in 1825. Every conductor he tested offered some level of resistance. These experiments led to Ohm's law. Ohm's law of 1826 states that if the ambiant temperature remains constant, the current flowing through certain conductors is proportional to the potential difference(voltage) across it. In other words, current equals voltage divided by resistance. "I" is current, "V" is voltage, and "R" is resistance in the equation and diagrams.
I=V/R
Or "V" (the voltage or the electomotive force - measured in volts) equals "I" (the current - measured in amperes) times "R" (the resistance - measured in ohms). An ohm is the SI unit of resistance. It is the resistance between two points of a conductor under a certain set of circumstances. There must be a constant difference of potential (the work required to bring a unit of electric charge) of 1 volt applied between these two points, producing the conductor a current of 1 ampere. The diagram below show exactly how Ohm's Law works with a common battery. The yellow light represents a bulb which is powered by the battery. The tan wire shows where the resistence occurs.
