Question
a transformer has 200 turns in its primary coil, the potential difference across the transformer is 220V needs to operate an electrical instrument uses a 110 volts. the number of turns in its secondary coil is:
a) 100 turns
b) 200 turns
c) 110 turns
d) 220 turns
a) 100 turns
b) 200 turns
c) 110 turns
d) 220 turns
Answers
to get half the voltage you need half as many turns in the secondary, so a.
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