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Math Help - Need help differentiating

  1. #1
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    yujyu
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    Need help differentiating

    i= v/r (1-e^-Rt/L)


    How would i go about differentiating this formula to get di/dt? Would I use the product rule or another rule?
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  2. #2
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    Re: Need help differentiating

    use chain rule for differentiating
    i=v/r(1-e^(-rt/l))
    di/dt=(r/l)*e^(-rt/l)
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  3. #3
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    Re: Need help differentiating

    That is not quite correct. prasum forgot the initial v/r.
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  4. #4
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    Re: Need help differentiating

    correct the answer is di/dt=(v/l)*e^(-rt/l)
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