Question

One kilowatt hour is equal to

• A. $36 \times 10^{5}joules$
• B. $36 \times 10^{3}joules$
• C. $10^{3}joules$
• D. $10^{5}joules$

Answer 1

Answer: (A)

$36 \times 10^{5}joules$

Answer 2

1 kWh = 1000 W × 3600 sec = 36 × 10⁵ W-sec (or J)