Four uniform wires having equal length 1m each and resistance in the ratio $1:2:3:4$  are connected together to form a square CDEF in that order i.e. CD, DE, EF, FC and resistance of wire CD is ‘r’. This loop surrounds a cylindrical region of circular cross section in which uniform magnetic field whose net flux depends on time according to relation  $\varphi =40tweber$, where‘t’ is in second. The magnetic field is perpendicular to the plane of square loop. Centre of circular cross section and square loop coincides. ($V_1\&V_2$ are ideal voltmeters, magnetic field is confined to a cylindrical region and its axis coincides with that of square)