1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Step-Up Transformer Conceptual Problem

  1. Apr 6, 2012 #1
    1. The problem statement, all variables and given/known data

    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
    3. 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.
     
  2. jcsd
  3. Apr 6, 2012 #2

    berkeman

    User Avatar

    Staff: Mentor

    An ideal transformer has no losses. What is your answer now?
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook