Equations
Electric power
Electricity and magnetism · id electric_power
P = I V
| Symbol | Quantity | Unit | Meaning | Usual range |
|---|---|---|---|---|
P | power | W | Rate of energy delivered | 0 to 1e+09 |
I | current | A | Current through the device | 0 to 10000 |
V | voltage | V | Voltage across the device | 0 to 1e+06 |
Assumptions
- Steady (DC) current
Valid when
- No extra conditions.
Found by
Questions with these words retrieve this equation: electric power, watts, current, voltage, appliance, bulb, charger.
Source
OpenStax University Physics Volume 2, Chapter 9 (reference; entry written by the project). License: MIT. Entry confidence: 0.99.