INTERNATIONAL BROTHERHOOD OF
ELECTRICAL WORKERS
LOCAL UNION NO. 756

Vol. 4 No. 6 NOVEMBER 1997
ANSWERS
The Side-Cutter EAST COAST EDITION The Side-Cutter

  1. (c.) 5/1 ratio - To find turns-ratio divide the higher voltage by the lower voltage 120v/24v = 5.

  2. (c.) 20.83 amps - To find secondary current use ohms law formula I = W/E = 500w/24v = 20.83a.

  3. (b.) 4.16 amps - To find the primary current I = W/E = 500va/120v = 4.16 current in the primary.

  4. (a.) 500 va - To find the input va at 100% efficiency it is equal to the output va which is 500.

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