Question

The factors directly proportional to the amount of heat conducted through a metal rod is

A)Time of flow of heat
B)Area if crosssection
C)Temperature gradient
D)All the above​

Answer 1

Explanation:

All of the above is the answer

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Answer 2

Answer:

Option D is the correct answer.

Explanation:

The amount of heat conducted through a metal rod is directly proportional to

• Time of flow of heat - time of flow increases as the heat in conducter increases.
• Area of cross section - Bigger the area more amount of heat is produced by conductor.
• Temperature gradient - Increase in temperature does the increase in heat produced by conductor.

It is directly proportional to the square of diameter and inversely proportional to rod length.

Where k is the thermal conductivity, P=Q/t=kAΔT/L

ΔT is the difference in temperature. A is the cross-sectional area of the rod, and L is its length.