Mathematical Relationship Between Current And Resistance
If the resistance is doubled the current is halved.
Mathematical relationship between current and resistance. The most basic mathematical formula governing the relationship between resistance current and voltage is. Where v i r stand for voltage current and resistance respectively. This equation suggests that for a given resistance the amount of current that flows in the circuit is directly proportion to the potential difference across it. Ohm s law describes the relationship between voltage current and resistance.
Introducing the constant of proportionality the resistance one arrives at the usual mathematical equation that describes this relationship. Where i is the current through the conductor in units of amperes v is the voltage measured across the conductor in. In the next tutorial about dc circuits we will look at ohms law which is a mathematical equation explaining the relationship between voltage current and resistance within electrical circuits and is the foundation of electronics and electrical engineering. A man named george ohm published this formula in 1827 based on his experiments with electricity.
Probably the most important mathematical relationship between voltage current and resistance in electricity is something called ohm s law. Calculate the amount of electric current in a circuit using ohm s law. As the resistance increases the current decreases and vice versa. V i r.
Mathematically it is expressed as. Ohm s law states that the current through a conductor between two points is directly proportional to the voltage across the two points. As the resistance decreases the current increases. If the resistance is increased 5 times the curren.
Ohm s law is defined as.