Moderate

Three 60 W bulbs are in parallel across the 60 V power line. If one bulb burns open_________________?

Correct answer: D. the other two bulbs will light

  • A. there will be heavy current in the main line
  • B. rest of the two bulbs will not light
  • C. all three bulbs will light
  • D. the other two bulbs will light

Explanation

In a parallel circuit, each bulb has an independent branch across the supply. An open bulb disconnects only its own branch, so the other two continue to light.

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