LIVE Course for free

Rated by 1 million+ students
Get app now
0 votes
16 views
in Physics by (30.0k points)
closed by
If the temperature difference between hot and cold end of the solids increases then the rate of conduction will-
1. Decrease
2. Remain Constant
3. Increase
4. Becomes zero

1 Answer

0 votes
by (30.0k points)
selected by
 
Best answer
Correct Answer - Option 3 : Increase

option(3) 

CONCEPT:

  • Conduction is the mechanism of transfer of heat between two adjacent parts of a body because of their temperature difference.
    • Conduction is mostly seen in solids and liquids because the particles are very close within them than in gases, where particles are further apart.

The rate of heat transfer is given by:

q = -kA\(\frac{dT}{dx}\)

Where q is the rate of heat transfer, k is the conductivity of the material, and dT/dx is the temperature gradient.

EXPLANATION:

The rate of heat transfer is given by:

q = -kA\(\frac{dT}{dx}\)

Heat Transfer ∝ Temperature difference

  • Thus we can say that, the greater the temperature difference, the more will be the rate of heat transfers
  • Hence option 3 is correct.

  • Suppose if you put one end of a metallic rod near a flame, after a while, you can not touch the last end of the rod which you were held.
  • This happens due to heat transfer.​

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...