Question

Two rods of equal length and diameter have termal conductive 3 and 4 untis respectively.if they are joined in series the termal conductivity of the combination would be

Answer 1

Answer:

7 units

Explanation:

Since the two rods are joined in series, the heat across them is constant, however the temperature difference between their two ends varies. Since this is similar to a series combination of resistors where current through the resistors is same. We use the same formula for series resistors, i.e R1+R2

3+4=7

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