Calculate Power Resistance Voltage

We ve seen the formula for determining the power in an electric circuit.

Calculate power resistance voltage. The voltage v in volts v is equal to the current i in amps a times the resistance r in ohms ω. 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. Calculate power current voltage or resistance. The resistance r in ohms ω is equal to the squared voltage v in volts v divided by the power p in watts w.

In the above circuit we know we have a battery voltage of 18 volts and a lamp resistance of 3 ω. Simple to use ohm s law calculator. Amperes milliamperes milliwatts watts kilowatts megawatts gigawatts millivolts volts kilovolts megavolts ohms kiloohms and. V v i a r ω.

But we have designed this one especially for dc circuits as well as work for single phase ac circuits without power factor. The result will be displayed in the metrics chosen with supported metrics being. Calculate voltage and resistance given power and current just enter the two known quantities describing the electrical current and the other two will be calculated based on them. Power voltage current resistance p v i r calculator.

The power p in watts w is equal to the voltage v in volts v times the current i in amps a. Learn the power formula. 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. Just enter 2 known values and the calculator will solve for the others.

How to use ohm s law to determine current. Resistance 240 3 80 ω to calculate the resistance of an electrical component an ammeter is used to measure the current and a voltmeter to measure the potential difference. The current i in amps a is equal to the voltage v in volts v divided by the resistance r in ohms. In this calculator table you may enter two of the four factors in ohm s law.

By multiplying the voltage in volts by the current in amps we arrive at an answer in watts let s apply this to a circuit example.