When two identical bulbs are connected in parallel across a battery, compared with one bulb alone each bulb is

Answer and explanation

Correct answer: D. equally bright

Each branch of a parallel circuit has the full battery voltage, so each bulb is as bright as when alone.
Answer: equally bright.
Why not the others: dimmer: each parallel branch gets the full battery voltage. brighter: the voltage across each bulb stays the same. off: both light up.

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