physics

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Several light bulbs, each of resistance 1.5 Ω, are connected in a series across a 120 V source of emf. If the current through the circuit is 2 A, how many light bulbs are there in the circuit?

  • physics -

    R=V/I=120/2=60 ohms total.

    number bulbs= 60/1.5

    That is a lot of bulbs.

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