State the commercial unit of electric energy and find its relation with its SI unit The current through a resstor is made three times its initial value.Calculate how it will anker the heat produced in the resistor Find the amount of heat generated in a conductor if another conductor of double resistance is connected in the circuit keeping all other factors unchanged.
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Explanation:
The commercial unit of electrical energy is kilo watt hour (kWh).
1 kWh can be converted to joule as:
1kWh=3.6×10
6
J
The kilowatt-hour (symbolized kWh) is a unit of energy equivalent to one kilowatt (1kW) of power expended for one hour (1h) of time. The kilowatt-hour is not a standard unit in any formal system, but it is commonly used in electrical applications. kWh is the unit of electrical energy, it is same for both commercial as well as domestic. Commercial unit is having different rate of charge and it is more than domestic unit rate. It is basically applied on power consumption in factories or other business sector.
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