Define heat current and thermal resistance.

Define terms heat current and thermal resistance. Write their SI units.

Two conductors A and B given in previous problem are connected in parallel as shown in Fig. i. Determine the equivalent thermal resistance. ii. Determine the heat current in each rod.

Find SI units of thermal resistance.

For an ideal conductor thermal resistance is .

The dimensions of thermal resistance are

When a current flows in a wire of resistance R at a constan t potential difference, then the value of heat produced by a current is inversely proportional to:

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.