Two bulbs are marked 60, W, 220, V and 100, W | vedclass

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(B) When bulbs are connected in parallel,the potential difference across each bulb remains the same,which is equal to the supply voltage $(220\, V)$.T

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$100\, W$ bulb

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(B) When bulbs are connected in parallel,the potential difference across each bulb remains the same,which is equal to the supply voltage $(220\, V)$.The brightness of a bulb depends on the power consumed by it,which is given by the formula $P = V^2 / R$.Since the voltage $V$ is constant for both bulbs,the power consumed is directly proportional to the rated power of the bulb.The bulb with the higher wattage rating $(100\, W)$ will consume more power and therefore glow brighter than the $60\, W$ bulb.

Two bulbs are marked $60\, W, 220\, V$ and $100\, W, 220\, V$. These are connected in parallel to a $220\, V$ mains. Which one out of the two will glow brighter?

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