The discussion centers on the principles of an ideal step-up transformer, specifically addressing the relationship between voltage, current, and power. According to the transformer equation Ep/Np=Es/Ns, when voltage is increased, current must decrease to maintain energy conservation, as power remains constant in an ideal transformer. The correct answer to the posed question is that current must be decreased when voltage is stepped up.
PREREQUISITESElectrical engineering students, educators, and professionals involved in power systems and transformer design will benefit from this discussion.
longcatislong said:Homework Statement
Even for an ideal transformer, we can't get "something for nothing". If this transformer steps up the voltage, what must be decreased?
a) power
b) current
c) resistance
The Attempt at a Solution
Ep/Np=Es/Ns
I believe it's power or current, but these two are related. So I'm not sure which one to choose.