A transformer has turns on the primary coil and on the secondary coil. The primary is connected to a a.c. supply. What is the secondary voltage?
Answer and explanation
Correct answer: D.
- Step 1: .
- Step 2: V.
Answer
.
Why not the others: : multiplies by the turns ratio instead of dividing. : loses a power of ten when dividing by . : subtracts the number of turns.
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