0

Guest

Courses New

A spherical constant temperature heat source of radius r 1 is at the center of a uniform solid sphere of radius r 2 The rate t which heat is transferred through the surface of thesphere is proportional to

A spherical constant temperature heat source of radius r1 is at the center of a uniform solid sphere of radius r2 The rate t which heat is transferred through the surface of thesphere is proportional to

Grade:11

1 Answers

Aditi Chauhan
askIITians Faculty 396 Points
8 years ago
The correct option is (A).
The rate H at which heat is transferred through the slab is,
(1)directly proportional to the area (A) available.
(2) inversely proportional to the thickness of the slab Δx.
(3) directly proportional to the temperature difference ΔT.
So, H = kA ΔT/ Δx
Where k is the proportionality constant and is called thermal conductivity of the material.
From above we know that, the rate H at which heat is transferred through the slab is directly proportional to the area (A) available.
Area A of solid sphere is defined as,

236-1555_1.PNG

Think You Can Provide A Better Answer ?

Other Related Questions on Thermal Physics

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More