Question

A commercial unit of electric energy is

Answer 1

Electric energy:

1. A kilowatt-hour is a commercial unit of electrical energy$\left(\mathrm{kWh}\right)$
2. A kilowatt-hour is a unit of energy equal to one kilowatt of power $\left(1\mathrm{kW}\right)$ expended for one hour $\left(1\mathrm{h}\right).$
3. It's simply a unit of measurement that represents the amount of energy used if a $1000$-watt appliance was left on for one hour.
4. It would take $10$ hours to accumulate $1\mathrm{kWh}$ energy if you switched a $100$-watt light bulb
5. Although the kilowatt-hour is not a recognized system unit, it is widely used in electrical applications.
6. The unit of electrical energy is the kilowatt-hour$\left(\mathrm{kWh}\right)$, which is the same for commercial and home use.
7. Commercial apartments have separate rates of charge, which are higher than residential unit charges.

$1\mathrm{kWh}$, can be converted to joule as

$1\mathrm{kWh}=1\mathrm{kW}\times 1\mathrm{hour}$

As we know,

$1\mathrm{kW}=1000\mathrm{W}$

And $1\mathrm{hour}=3600\sec$

$1\mathrm{kWh}=1000\mathrm{W}\times 3600\sec$

$1\mathrm{kWh}=3.6\times {10}^6\mathrm{J}$

Therefore, the commercial unit of electric energy is a kilowatt-hour.