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4 September, 09:29

John is creating a series circuit of Christmas lights. He wants to create a strand that has 2 fans and 20 lights. Each fan has a resistance of 5 ohms. Each light has a resistance of 3 ohms. What is the total resistance of the circuit?

A. 76 ohms

B. 66 ohms

C. 70 ohms

D. 60 ohms

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Answers (1)
  1. 4 September, 09:50
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    Answer:C

    Explanation:

    Total Resistance=R1+R2

    R1=2*5=10ohms

    R2=3*20=60ohms

    Therefore; Total R=10+60

    =70ohms
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