A 440/110-V ideal transformer can be connected to become a 550/440-V ideal autotransformer. There are four possible

Question:

A 440/110-V ideal transformer can be connected to become a 550/440-V ideal autotransformer. There are four possible connections, two of which are wrong. Find the output voltage of:
(a) A wrong connection,
(b) The right connection.
An asterisk indicates a challenging problem.