1kWh/kWh(kW·h)= 1000 w×3600s = 36000000j。

Watt is the unit of power, which refers to the ratio of work to the time required to complete this part of work. The formula is p = w/t, and power is a physical quantity describing the speed of work. According to the power and working time, the work can be calculated: W=Pt.

introduce

Joule's law refers to the conversion relationship between electric energy and thermal energy, which was discovered by British physicist Joule in 184 1 year. The specific content of Joule's law is that the heat generated by current passing through a conductor is proportional to the square of the current, to the resistance of the conductor, and to the electrifying time.

The mathematical formula of Joule's Law is Q=I2Rt, where Q represents heat in Joule; I stands for current in amperes; R stands for resistance in ohms; T stands for time in seconds. This formula is applicable to the calculation of all current thermal effects.