- #1
crosbykins
- 53
- 0
Homework Statement
A step up transformer is designed to operate from a 12V supply and to deliver energy at 240V. If the secondary winding is connected to a 60W, 240 V lamp, determine:
a) the turns ratio of the transformer
b) the primary current
Homework Equations
P primary = P seconary
Vp/Vs = Is/Ip = Np/Ns
The Attempt at a Solution
-ok...well, I don't know how to do this at all, my textbook only had really straight forward questions where the info for primary and secondary was directly given...please help