Out of two bulb 50 W - 220 V & 100 W - 220 V which one glow brighter when connected in series
1 point
(a) 50 W
(b) 100 W
(c) both will glow similar
(d) none of the above
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Answer:
50w bulb
Explanation:
resistance of 50w is higher as r=v^2/p
since power =i^2 × r and current is same in series connection so higher resistance equal more power
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