Two identical metal wires of thermal conductivities K_{1} and K_{2} respectively are connected in series. The effective thermal conductivity of the combination is :
 
Option: 1 \frac{K_{1}+K_{2}}{2K_{1}K_{2}}
Option: 2 \frac{K_{1}K_{2}}{K_{1}+K_{2}}
Option: 3 \frac{K_{1}+K_{2}}{K_{1}K_{2}}  
Option: 4 \frac{2K_{1}K_{2}}{K_{1}+K_{2}}

Answers (1)

Most Viewed Questions

Preparation Products

Knockout JEE Main (Six Month Subscription)

- AI Coach Study Modules, - Unlimited Mock Tests, - Study Improvement Plan.

₹ 9999/- ₹ 8499/-
Buy Now
Knockout JEE Main (Nine Month Subscription)

- AI Coach Study Modules, - Unlimited Mock Tests, - Study Improvement Plan.

₹ 13999/- ₹ 12499/-
Buy Now
Test Series JEE Main 2024

Chapter/Subject/Full Mock Tests for JEE Main, Personalized Performance Report, Weakness Sheet, Complete Answer Key,.

₹ 7999/- ₹ 4999/-
Buy Now
Knockout JEE Main (One Month Subscription)

- AI Coach Study Modules, - Unlimited Mock Tests, - Study Improvement Plan.

₹ 7999/- ₹ 4999/-
Buy Now
Knockout JEE Main (Twelve Months Subscription)

- AI Coach Study Modules, - Unlimited Mock Tests, - Study Improvement Plan.

₹ 19999/- ₹ 14499/-
Buy Now
Boost your Preparation for JEE Main 2021 with Personlized Coaching
 
Exams
Articles
Questions