Calculating Resistance Voltage And Current

Just enter 2 known values and the calculator will solve for the others.

Calculating resistance voltage and current. But we have designed this one especially for dc circuits as well as work for single phase ac circuits without power factor. Current voltage and resistance current is the rate of flow of electric charge. Calculate power current voltage or resistance. The voltage v in volts v is equal to the current i in amps a times the resistance r in ohms ω.

V v i a r ω. The power p in watts w is equal to the voltage v in volts v times the current i in amps a. Ohms law calculator is used to find resistance voltage and current in a circuit. If a current i should flow through a resistor r the voltage v can be calculated.

If there is a voltage v across a resistor r a current i flows through it. For this reason the quantities of voltage and resistance are often stated as being between or across two points in a circuit. A potential difference voltage across an electrical component is needed to make a current flow through it. The team of a calculator online provided a simple and efficient tool known as ohms law calculator through which you can readily find out the value of voltage v current i power p and resistance r concerning simple ohm s law formula.

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. Ohm s law can be rewritten in three ways for calculating current resistance and voltage. If you don t know the individual values use the ohm s law equation where resistance voltage divided by current. Add all of the resistances across the circuit together to calculate the total resistance.

To calculate total resistance in series circuits look for a single loop with no branching paths. 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. The power p in watts w is equal to the voltage v in volts v times the current i in amps a. First version of the voltage formula.

The voltage v in volts v is equal to the square root of the power p in watts w times the resistance r in ohms ω. The power p in watts w is equal to the squared voltage v in volts v divided by the resistance r in ohms. V i r. Just like voltage resistance is a quantity relative between two points.

Simple to use ohm s law calculator.