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9. A transformer has turns ratio of 5:1 and if secondary voltage is 40V/50Hz. Find the(Ans: Vp= 2007. f = 50Hz.)primary voltage and the frequency of supply. |
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Answer» The input and output frequencies are the same. Turns ratio (the number of primary turns divided by the number of secondary turns) is approximately equal to the ratio of primary to secondary voltage. Therefore if secondary voltage is 40V, the primary voltage will be approximately equal to 200V |
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