Hi,
Can someone please explain to me the concept of emf and
is back emf the same as induced emf and what and how are induced currents produced
I'm really confused on this topic
Please help me answer question 61 and 67.a from 2004 science SC at this link
http://www.boardofstudies.nsw.edu.au/schoolcertificate/sc2004/pdf_doc/science_sctest_04.pdf
thankz:)