A transformer has 300 turns of wire in the primary coil and 30 turns in…
A transformer has 300 turns of wire in the primary coil and 30 turns in the secondary coil. If the input voltage is 100 volts, the output voltage is
A. 5 volts
B. 10 volts
C. 15 volts
D. 20 volts
The correct formula for calculating the output voltage will be:
Now for the right answer to the above question:
- A is not the right answer.
- B is correct.
- C is incorrect.
- D is incorrect.
You may please note this/these:
- Es/Ep = Ns/Np
- Primary terminal is same as input terminal while secondary terminal is same as output terminal.
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/ culled from 2020 JAMB-UTME physics past question 16 /