Power
| 1 Watt | 1 joule/sec |
| 1 horsepower | 550 ft. lb/sec = 716 watts |
| 1 Watt | 3.412 BTU/hr = 0.239 gram calorie/sec |
| P(watts) | R (ohms) x I (amperes)2 |
| P(watts) | E (volts)2 / R (ohms) |
| 1 Watt | 1 joule/sec |
| 1 horsepower | 550 ft. lb/sec = 716 watts |
| 1 Watt | 3.412 BTU/hr = 0.239 gram calorie/sec |
| P(watts) | R (ohms) x I (amperes)2 |
| P(watts) | E (volts)2 / R (ohms) |
