Power Voltage X Current

These include the quantities current voltage and power.

Power voltage x current. To get the result in watts work must be expressed in joules and time must. But we have designed this one especially for dc circuits as well as work for single phase ac circuits without power factor. Power in a resistor. Electric power like mechanical power is the rate of doing work measured in watts and represented by the letter p the term wattage is used colloquially to mean electric power in watts the electric power in watts produced by an electric current i consisting of a charge of q coulombs every t seconds passing through an electric potential difference of v is.

Current voltage and power. Enter data in any two of the boxes then click on the active text for the quantity you wish to calculate. You can check this by dividing 432 watts by 108 watts and seeing that the ratio between them is indeed 4. The details of the units are as follows.

Watts volts x amperes. Power voltage x current. 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 watts equation for an electrical circuit takes into account the voltage across the circuit v measured in volts and the current i measured in amps passing through it in mechanics the definition of power is the rate of doing work w it s defined as w t where t is the time it takes for the work to be completed.

Power within an electrical circuit is only present when both voltage and current are present. Resistivity w cm for common metals at room temperature. Example of power in series and parallel circuits. 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. Electricity is the flow of electric charge we can describe the flow of electric charge in several ways. Because power is a function of voltage multiplied by current and both voltage and current doubled from their previous values the power will increase by a factor of 2 x 2 or 4. V v i a r ω.

Current i is the rate of flow of charge carriers such as electrons current is usually thought of as moving in the direction of positive charge so from the positive power supply to the negative. Index dc circuits. Voltage current power calculated resistance. For example in an open circuit condition voltage is present but there is no current flow i 0 zero therefore v 0 is 0 so the power dissipated within the circuit must also be 0 likewise if we have a short circuit condition current flow is present but there is no voltage v 0 therefore 0 i 0.