Voltage Current Resistance

A potential difference voltage across an electrical component is needed to make a current flow through it.

Voltage current resistance. This calculator is based on simple ohm s law as we have already shared ohm s law p i v r calculator in which you can also calculate three phase current. The voltage is equivalent to the water pressure the current is equivalent to the flow rate and the resistance is like the pipe size. Ohm s law states that the current through a conductor between two points is directly proportional to the voltage across the two points. Current voltage and resistance current is the rate of flow of electric charge.

The amount of current in a circuit depends on the amount of voltage and the amount of resistance in the circuit to oppose current flow. The relationship between voltage current and resistance forms the basis of ohm s law. When describing voltage current and resistance a common analogy is a water tank. A basic electrical engineering equation called ohm s law spells out how the three terms relate.

In a linear circuit of fixed resistance if we increase the voltage the current goes up and similarly if we decrease the voltage the current goes down. Ohms law calculator is used to find resistance voltage and current in a circuit. Just like voltage resistance is a quantity relative between two points. So for this analogy remember.

V v i a r ω. For this reason the quantities of voltage and resistance are often stated as being between or across two points in a circuit. The voltage v in volts v is equal to the current i in amps a times the resistance r in ohms ω. Power voltage current resistance p v i r calculator.

But we have designed this one especially for dc circuits as well as work for single phase ac circuits without power factor. Where i is the current through the conductor in units of amperes v is the voltage measured across the conductor in. Voltage is represented in equations and schematics by the letter v. If two values are known from these three values another one can be found using our vape coil calculator for example if the voltage and current are known you can find the resistance or if resistance and voltage are known current can be calculated by entering the other two values in the resistance calculator.

This means that if the voltage is high the current is high and if the voltage is low the current is low. Introducing the constant of proportionality the resistance one arrives at the usual mathematical equation that describes this relationship. Current voltage and resistance current is the rate of flow of electric charge.