Bulbs B and C have the same brightness, and both are dimmer than bulb A Bulb A i

Question

Bulbs B and C have the same brightness, and both are dimmer than bulb A Bulb A is brighter than bulb B because it is closer to the battery Bulb C is dimmer than bulb B Bulbs A and C have the same brightness, and both are dimmer than bulb B Bulb A is dimmer than bulb B All three bulbs are equally bright Bulb C is dimmer than bulb A Bulb B is dimmer than bulb A Bulbs A and B have the same brightness, and both are dimmer than bulb C Bulb A is brighter than bulb C because it is closer to the battery In the circuit shown at the right, which statement(s) is (are) correct? Assume that all bulbs are identical. [Choose all the answers that are correct]

Explanation / Answer

The voltage across bulbs A and B together is the same as that across C. Because of voltage divider and that bulbs A are B are the same resistance, they must have the same brightness. Bulb C has twice the voltage across it as A and B.

Putting this together means that "Bulbs A and B have the same brightness, and both are dimmer than bulb C" is correct.

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