Self induction+Mutual induction

Discussion in 'Physics' started by Anna Balana, Aug 4, 2010.

  1. Anna Balana

    Thread Starter New Member

    Aug 4, 2010
    Hello sir,
    My que is that how we can relate& make a concept of Mutual induction &Self induction in two coils joined in series & parallel.Actually there was a que. :-:confused:
    Two wires are wound on a long plastic tube in same sense.Two end of different wires are joined together on one side of plastic tube &other side's wiress are connected with source of current 'I' . Show that induced EMF is -(L1+L2-2M12)(∂i/∂t),where L1&L2 ARE SELF INDUCTANCES &M is the mutual inductance.In this que how the signs of direction are considered ,how concept is applied pls. reply its solution as soon as possible.:)