| ASSERTION: Two electric bulbs of 50 and 100 watt are given. When connected in series 50 watt bulb glows more but when connected in parallel 100 watt bulb glows more. |
| REASON: In series combination, power is directly proportional to the resistance of circuit. But in parallel combination power is inversely proportional to the resistance of the circuit. |
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: A
Solution :
Resistance of 50 watt bulb is two times the resistance of 100 watt bulb when bulbs are connected in series, 50 watt bulb will glow more as \[P={{i}^{2}}R\](current remains same in series). In parallel the 100 watt bulb glow more as \[P=\frac{{{V}^{2}}}{R}\](Potential difference remains same in parallel).
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