TECHNICAL TERMS, UNITS, CONSTANTS, AND CONVERSION FACTORS FOR THE SI SYSTEM 837
Continued
TABLE C.4Continued
energy 1 joule (J) 1 watt-second
0.7376 foot-pounds (ft-lb)
0.2778 10–6kilowatt-hours (kWh)
0.2388 calorie (cal)
0.948 10–3British Thermal Units (BTU)
10 10^6 ergs
power 1 watt (W) 0.7376 foot-pounds/second
1.341 10–3horsepower (hp)
resistivity 1 ohm-meter (·m) 0.6015 10^9 ohm-circular mil/foot
0.1 10^9 micro-ohm-centimeter
magnetic flux 1 weber (Wb) 0.1 10^9 maxwells or lines
0.1 10^6 kilolines
magnetic flux density 1 tesla (T) 10 10^3 gauss
64.52 kilolines/in^2
magnetomotive force 1 ampere (A) or ampere-turn (At) 1.257 gilberts
magnetic field intensity 1 ampere/meter (A/m) 25.4 10–3ampere/in
12.57 10–3oersted
temperature degree centigrade (°C)^59 (temperature, °F−32)
(temperature, °K−273.18)