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March 27, 2017

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In an electrical circuit, the current passing through a conductor varies inversely with the resistance. Suppose that when the current is 8A (amperes), the resistance is 15 ohms. What is the current when the resistance is 4 ohms?

  • Physics-my answer - ,

    E=IR
    E=15*8
    E=120V
    --------------
    I=E/R
    I=120/4
    I=30 amperes

  • Physics - ,

    That is correct. (15/4)*8 = 30 A

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