Question

In a transformer, the incoming primary voltage is 120 V. There are 100 windings in the primary coil. The secondary coil has 65 windings. What is the outgoing voltage of this transformer?

Answer 1

Answer:

78.02V

Explanation:

Vp/Vs=Np/Ns

Vp(Primary Voltage)=120V

Vs(Secondary Voltage)= x

Np(Turns in Primary coil)=100

Ns(Turns in secondary coil)=65

120/x=100/65

do the math or use a calculator*

x=78; so the secondary voltage is 78.02

i have no idea where the .02 comes from but i took the test and its right