Resistance Power Voltage Formula

Power voltage current resistance p v i r calculator.

Resistance power voltage formula. The voltage v in volts v is equal to the current i in amps a times the resistance r in ohms ω. Voltage v current i x resistance r v volts i amps x r ω for example. V i r and the power law equation formula. Influare international ampere or intensity and r resistance.

V v i a r ω. V voltage electric potential difference δ v or e electromotive force emf voltage. This formula can be used to substitute for the voltage or for the current in the power formula and the power output of a battery that has internal resistance can be found using the formula v ε ir and the formula for power. 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.

When current and resistance are known you can easily find out the voltage using a simple voltage formula. The power p in watts w is equal to the voltage v in volts v times the current i in amps a. The thermal energy is being generated at a rate of 16 0 w. But we have designed this one especially for dc circuits as well as work for single phase ac circuits without power factor.

The nominal impedance z 4 8 and 16 ohms loudspeakers is often assumed as resistance r. The above ohm s law calculator is reliable to do so. In this calculator table you may enter two of the four factors in ohm s law. The form that is applicable relates power voltage and resistance.

The resistance value can be found by rearranging one of the forms of the electric power formula. What is the resistance value. They are power p or w measured in watts voltage v or e measured in volts current or amperage i measured in amps amperes and resistance r measured in ohms. P i v.

Ohm s law equation formula. The resistance value is 36 0 ω.