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    bear4343 Posts: 1, Reputation: 1
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    #1

    Apr 25, 2010, 11:36 AM
    Transformer has 20 windings 100 secondary windings secondary voltage is 25V
    A transformer has 20 primary windings and 100 secondary windings. If the secondary voltage is 25V, find the primary voltage.
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    KISS Posts: 12,510, Reputation: 839
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    #2

    Apr 25, 2010, 11:59 AM

    The ratio of the windings is the same as the ratio of the voltages.

    Can you figure it out?
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