Two conducting rods A and B of same length and cross-sectional area are connected (i) In series (ii) In parallel as shown. In both combination a temperature difference of `100° C` is maintained. If thermal conductivity of A is 3 K and that of B is K then the ratio of heat current flowing in parallel combination to that flowing in series combination is

Two rods A and B of same length and cross-sectional area are connected in series and a temperature difference of 100^@C is maintained across the combination as shoen in Fig. If the thermal conductivity of the rod A is 3 k and that of rod B is k, Then i.Determine the thermal resistance of each rod. ii. determine the heat current flowing through each rod. iii. determine the heat current flowing through each rod. iv. plot the variation of temperature along the length of the rod.

Two rods A and B of same length and cross-sectional area are connected in series and a temperature difference of 100^@C is maintained across the combination as shoen in Fig. If the thermal conductivity of the rod A is 3 k and that of rod B is k, Then i.Determine the thermal resistance of each rod. ii. determine the heat current flowing through each rod. iii. determine the heat current flowing through each rod. iv. plot the variation of temperature along the length of the rod.

Three rods A, B and C of the same length and cross- sectional area are joined in series as shown. The temperature at the junction of A and B , in equilibriu, is

Three metal rod A, B and C of same length and cross-section are placed end to end and a temperature difference is maintained between the free ends of A and C. If the thermal conductivity of B(K_B) is twice that of C(K_C) and half that of A(K_A) , then the effective thermal conductivity of the system will be

Two metal rods of same length and same cross sectional area are connected in Series. If their conductivities are 120 Wm^(-1)K^(-1) and 240 Wm^(-1)K^(-1) then effective conductivity of the combination is

Three metal rods of same length and same cross - sectional area are connected in parallel. If their conductivities area 70, 110, 180 Wm^(-1) K^(-1) respectively, the effective conductivity (in Wm^(-1) K^(-1)) of the combination is