p33_063 - 63. (a) The stepped-down voltage is Vs = Vp Ns Np...

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63. (a) The stepped-down voltage is V s = V p µ N s N p = (120 V) µ 10 500 =2 . 4V . (b) By Ohm’s law, the current in the secondary is I s = V s R s = 2 . 4V 15 Ω =0 . 16 A . We fnd the primary current From Eq. 33-80:
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