A transformer has 390 turns in the primary coil and 230 in
A transformer has 390 turns in the primary coil and 230 in the secondary coil. What kind of transformer is this? step-down step-up By what factor does it change the voltage? (Assume 100% efficiency.) By what factor does it change the current?
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a transformer has 390 turns in the primary coil and 230 in the secondary coil what kind of transformer is this
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