Electrical power
Your result24 W
For DC or an ideal resistive AC load. Other AC loads require a power factor.
DC power = voltage × current
For DC circuits, multiply voltage by current: P = V × I.
Worked example
A 12 V supply delivering 3 A provides 36 W. General AC real power needs power factor; do not assume every AC load follows the simple DC formula.
Try it with your own numbers
Use the Power Calculator to check another example. Read the input labels carefully and keep units consistent.
Before you use the answer
Choose the correct starting quantity and keep full precision until the final step. An arithmetic result describes the numbers entered; the usefulness of the result depends on accurate measurements and the assumptions in the calculation.
Sources & references
- Electrical Energy and Power — OpenStax
