An ideal transformer has 1000 turns on the primary coil and 50 turns on the secondary coil. The primary voltage is 230 V. What is the secondary voltage?
Answer and explanation
Correct answer: D. 11.5 V
- Step 1: For an ideal transformer, .
- Step 2: V.
Answer
11.5 V.
Why not the others: 4600 V multiplies by 20 (step-up), 1150 V is off by a factor of 100 and 46 V is 230 divided by 5.
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