A 100 W lightbulb is brighter than a 60 W lightbulb when both operate at the same voltage of 120 V. Part A If, instead, they were both operated at the same current of 0.5 A, which would be brighter? Select the correct answer and explanation. If, instead, they were both operated at the same current of 0.5 , which would be brighter? Select the correct answer and explanation. The 100 W bulb has a higher resistance, so it would be brighter. The 100 W bulb has a lower resistance, so it would be brighter. The 60 W bulb has a higher resistance, so it would be brighter. The 60 W bulb has a lower resistance, so it would be brighter.

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24-02-2019
Physics

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A 100 W lightbulb is brighter than a 60 W lightbulb when both operate at the same voltage of 120 V. Part A If, instead, they were both operated at the same current of 0.5 A, which would be brighter? Select the correct answer and explanation. If, instead, they were both operated at the same current of 0.5 , which would be brighter? Select the correct answer and explanation. The 100 W bulb has a higher resistance, so it would be brighter. The 100 W bulb has a lower resistance, so it would be brighter. The 60 W bulb has a higher resistance, so it would be brighter. The 60 W bulb has a lower resistance, so it would be brighter.

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PartyBaby PartyBaby · Answer 1 · 2019-02-24T01:07:17+01:00

PartyBaby PartyBaby

24-02-2019

The answer would be: the 60 W bulb has a higher resistance, so it would be brighter.

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sp10925 sp10925 · Answer 2 · 2022-07-24T05:37:29+02:00

60 W bulb has a higher resistance, so it would be brighter. The third option is correct.

What is Power?

Power can be defined as the rate at which work is done by an object. The S.I unit of power is Watt(W).

A 100 W lightbulb is brighter than a 60 W lightbulb when both operate at the same voltage of 120 V.

If they were both operated at the same current of 0.5 A, the brighter bulb will be 60W.

The brightness of the bulb depends on the magnitude of current and resistance of a bulb. If the current is same, resistance will decide the power of the bulb.

So, 60 W bulb has a higher resistance, so it would be brighter.

Thus, the third option is correct.

Learn more about power.

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