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Compare the brightness of the bulbs in the diagram (assuming they have the same resistance)
Compare the brightness of the bulbs in the diagram (assuming they have the same resistance)
A) D < E
A) D < E
B) D = E
B) D = E
C) D > E
C) D > E
Solution: D = E. These bulbs are in parallel, so they must have the same electric potential difference. According to the formula P = V^2/R, they must have the same power and therefore the same brightness.
Solution: D = E. These bulbs are in parallel, so they must have the same electric potential difference. According to the formula P = V^2/R, they must have the same power and therefore the same brightness.
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