| ASSERTION: KW hr is a commercial unit used for expressing consumed electric energy. |
| REASON: A 100 Watt bulb has more resistance than a 200 W bulb. |
A) If both assertion and reason are true and reason is the correct explanation of assertion.
B) If both assertion and reason are true and reason is not the correct explanation of assertion.
C) If assertion is true but reason is false.
D) If both assertion and reason are false.
E) If assertion is false but reason is true.
Correct Answer: C
Solution :
\[1k\,Whr\]\[=1k\,W\times 1\]hour = 1000 (joule/sec) \[\times 3600\]sec \[=36\times {{10}^{5}}\]joule i.e. kwhr is the unit of electric energy and used for expressing consumed electric energy.
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