Question

A $2 \,kW$ boiler used for $1\, h/$day consumes the following electrical energy in thirty days

• A. 60 unit
• B. 120 unit
• C. 15 unit
• D. $6\times 10^{4}$ unit

Answer 1

Answer: (A)

60 unit

Answer 2

Number of units $=\frac{P(\text { in watt }) \times t(\text { in hour })}{1000}$ $\Rightarrow$ Number of units $=\frac{2 \times 10^{3} \times 1 \times 30}{1000}=60$ unit