Recent content by PaulK

It is such a relief. Thanks a lot, berkeman.

1. when an alternating voltage is applied across the primary coil, an emf is induced in the secondary coil 2. when an alternating voltage is applied across the primary coil, an alternating current is induced in the secondary coilcan anyone tell me which one is true and why? Thanks a lot.

Here is the problem: http://postimage.org/image/1jy6nol5w/ Method 1: Steps 1. Calculate V(T1)=12*10=120V, V(T2)=10*10=100V 2. Since V(3)=10V and I(3)=1A, P(T3)=10W 3. Since not otherwise stated, Assume transformers are perfect. 4. So P(T3)= P(T2) = 10W 5. known...