Question

A certain household has consumed $250$ units of energy during a month. How much energy is this in joule ?

• A. $9\times {10}^{8}J$
• B. $10\times {10}^{8}J$
• C. $9\times {10}^{7}J$
• D. $9\times {10}^{-8}J$

Answer 1

The correct option is A $9\times {10}^{8}J$

Energy consumed in a month
$=250units=250kWh$
$=250\times 3.6\times {10}^6=9\times {10}^{8}J$