What unit is power measured in?
2 Answers
Power is measured in **watts (W)**.
One watt is equivalent to one joule per second (J/s), meaning it represents the rate at which energy is used or produced. In electrical systems, power can also be calculated as:
- \( P = VI \) (Power = Voltage \(\times\) Current), where:
- \(P\) is power in watts (W),
- \(V\) is voltage in volts (V), and
- \(I\) is current in amperes (A).
For larger amounts of power, units like **kilowatts (kW)** (1 kW = 1000 W) or **megawatts (MW)** (1 MW = 1,000,000 W) are often used.
One watt is equivalent to one joule per second (J/s), meaning it represents the rate at which energy is used or produced. In electrical systems, power can also be calculated as:
- \( P = VI \) (Power = Voltage \(\times\) Current), where:
- \(P\) is power in watts (W),
- \(V\) is voltage in volts (V), and
- \(I\) is current in amperes (A).
For larger amounts of power, units like **kilowatts (kW)** (1 kW = 1000 W) or **megawatts (MW)** (1 MW = 1,000,000 W) are often used.