Question

Explain the following in terms of joule-

(i) Watt-Hour

Answer 1

1. Watt-Hour is the commercial unit of Electrical energy.
2. OneWatt-Hour of energy is defined as the energy consumed by an $1Watt$appliance in one hour.
   $$\begin{gathered} 1W-h=1\times 60\times 60Watt-second \\ 1W-h=3.6\times {10}^{3}W-sorJoules \end{gathered}$$