A transformer has 300 turns of wire in the primary coil a...
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
5 volts
10 volts
15 volts
20 volts
Correct answer is B
For transformation, Es = e.m.f. of secondary coil
Ep = Np
Np = e.m.f. of secondary coil
Ns = number of turns in secondary coil
Ns = number of turns in primary coil
30300 = x100 = 300
X = 3000
X = 10 volts