Two wires of equal diameters of resistivities `p_1 and p_2` and length` x_1` and `x_2` respectively are joined in series. The equivalent resistivity of the combination is

Two wires of equal diameters of resistivies rho_(1) and rho_(2) and lengths l and l respectively are joined in series. The equivalent resistivity of the combination is

Two wires of equal diameters of resistivities rho_(1) and rho_(2) and length x_(1) and x_(2) respectively are joined in series. Find the equivalent resistivity of the combination.

Two wires of equal diameters, of resistivities rho_(1) and rho_(2) and length l_(1) and l_(2) , respectively of the combination is

Two wires of equal length and equal diameter and having resistivities rho_(1) and rho_(2) are connected in series. The equivalent resistivity of the combination is _______.

Two wires of equal length and equal diameter and having resisticities rho_(1) and rho_(2) are connected in series. The equivalent resistivity of the combination is .... .

Two wires of the same dimensions but resistivities p_(1) and p_(2) are connected in series. The equivalent resistivity of the combination is