Conductance

The Correct Answer is : 100%

In conducting materials, charge density is highest at points with the sharpest curvature (vertex of the cone) and decreases as the surface area increases (towards the base).
At the vertex , the charge density is the highest.
The charge densities at points , which are symmetrically located at the periphery of the base, are equal because the surface area at these points is larger compared to the vertex. Thus, the relationship between the charge densities is:
Final Answer: The correct option is (2), .

Step 1: Thermal resistance concept.
Thermal resistance: Given: Step 2: Analyze heat flow.
Between and , heat flows through two parallel paths: Effective resistance between and : Step 3: Series combination from to .
Total resistance: Total temperature difference: Step 4: Temperature drops.
Drop across : Drop across : Final Answer: