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    Physcics Posts: 2, Reputation: 1
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    #1

    Apr 14, 2011, 12:13 AM
    What inductance is necessary
    What inductance is necessary for 157 Ohms of inductive reactance at 1000HZ
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    jcaron2 Posts: 986, Reputation: 204
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    #2

    Apr 14, 2011, 01:14 PM
    The impedance of an inductor is . Therefore, the reactance is .

    Just set X=157 and f=1000, and solve for L. You should get something in the neighborhood of 25 mH.
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