Figure (a) below shows two identical light bulbs connected in series and figure

Question

Figure (a) below shows two identical light bulbs connected in series and figure (b) in parallel. Which set would glow brighter when the same voltage is applied across the bulb combinations? Consider the following and pick the best one.

Figure (a) below shows two identical light bulbs connected in series and figure (b) in parallel. Which set would glow brighter when the same voltage is applied combinations? Consider the following and pick the best one. The light bulbs It depends on the supplied voltage. The light bulbs connected in series and in parallel are equally bright. The light bulbs connected in series.

Explanation / Answer

Rnet in series = R1 +R2

Rnet in parallel = Refff = R1R2/(R1+R2)

so in series combination resistance increases and in parallel combination resisatnce decreases

so in parallel combinatio, fig B is more brighter

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