EngiRef / Electrical Engineering Formula
Electrical Power (V×I)
Electrical Power (V×I): Power equals voltage times current. A DC Circuits formula in electrical engineering. Variables P, V and I, each with SI and imperial…
DC Circuits
Specification
- Name
- Electrical Power (V×I)
- Discipline
- electrical
- Category
- DC Circuits
- LaTeX
- P = VI
- Description
- Power equals voltage times current
- Conditions
- DC or instantaneous values
- Can solve for
- P, V, I
- Tags
- power, voltage, current, watt
Variables
| Symbol | Name | Unit | Si Unit |
|---|---|---|---|
| P | Power | W | W |
| V | Voltage | V | V |
| I | Current | A | A |
Common questions
- What is the Electrical Power (V×I) formula?
- Power equals voltage times current. It sits under DC Circuits, Electrical engineering in the EngiRef reference.
- What do the symbols in the Electrical Power (V×I) formula mean?
- In Electrical Power (V×I), P is power in W; V is voltage in V; I is current in A.
- When does the Electrical Power (V×I) formula apply?
- Electrical Power (V×I) holds under this condition: DC or instantaneous values.