You obtain a 100-W light bulb and a 50-W light bulb. Instead of connecting them in the normal way, you devise a circuit that places them in series across normal household voltage. Which statement is correct? a. Both bulbs glow at the same reduced brightness. b Both bulbs glow at the tame increased brightness c. The 100-W bulb glows more brightly than the 50-W bulb d. The 50-W bulb glows more brightly than the 100-W bulb

The 50-W bulb glows more brightly than the 100-W bulb

Explanation:

The bulb has a rating of 100 W under 110 V . So it will glow with full brightness when it is fed 110 V . When bulbs are in parallel combination , each bulb receives 110 V . So they glow with full brightness .

When they are in series combination , 110 supply voltage gets distributed between the , thus  , reducing the voltage appearing on each of them less than 110 V . So their brightness is reduced.

resistance = V

Bulb having high wattage rating has low resistance resulting in higher current . In the second case , both have same current as they are in series combination . So more heat will be generated in bulb having more resistance . Since 50 W bulb has higher resistance , it will glow brighter than 100 W bulb.

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the entire statement is true and correct.  

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