Convert electrical power to current for a given voltage and power factor.
DC: 1.0, AC Resistive: 1.0, Motors/Inductive: 0.7–0.9
The relationship between power (Watts), voltage (Volts), and current (Amps) is fundamental in electrical engineering. In a simple DC circuit, power is simply the product of voltage and current.
In AC circuits, the power factor (PF) must be considered. The power factor represents the phase difference between voltage and current. For purely resistive loads (like heaters or incandescent bulbs), the power factor is 1.0. For inductive loads (like motors), it is typically less than 1.0.
Where I is current (Amps), P is power (Watts), V is voltage (Volts), and PF is the power factor.
Constraints: Voltage must be > 0 V; Power Factor must be in range (0, 1] (where 1.0 = purely resistive, <1.0 = inductive/capacitive AC loads). Example: 1200 W at 120 V with PF = 1.0 yields 10.00 A.
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