In a potentiometer circuit a cell of EMF `` 1.5\, V `` gives balance point at `` 36\, cm `` length of wire. If another cell of EMF `` 2.5\, V `` replaces the first cell, then at what length of the wire, the balance point occurs ?
(A)60 cm
(B)21.6 cm
(C)64 cm
(D)62 cm