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    Electromotive Force : Minimizing Time

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    For an electric circuit, let V=cos 2pi(t) model the electromotive force in volts at t seconds.
    find smallest positive value of t where 0<and= to t<and= to 1/2 for the values
    a) V=0
    b) V=.5
    c) V=.25

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    Solution Preview

    a) sub to get 0 = cos(2pi*t)
    but we know that cos is 0 at pi/2 hence
    2pi*t = pi/2
    t = ...

    Solution Summary

    Minimum time is linked to voltage in this electromotive force problem.