Q. 26

Two conductors are made of the same material and have the same length. Conductor A is a solid wire of diameter 1mm. Conductor B is a hollow tube of outer diameter 2mm and inner diameter 1mm. Find the ratio of resistance RA to RB.

Answer :

Given :


Diameter dA= 1mm


Radius rA= 0.5mm


Diameter dBout= 2mm


Radius rBout= 1mm


Diameter dBin= 1mm


Radius rBin= 0.5mm




Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Ohm's Law - Full Concept in one Go59 mins
Know about Internal Resistance & EMF42 mins
Interactive Quiz on Ohm's law & Drift + Thermal Velocity42 mins
Interactive Quiz on Current Electricity46 mins
An Elaborative lecture on basics of Current Electricity53 mins
Quick Revision of Current Electricity68 mins
Quiz | Wheatstone Bridge51 mins
Quiz | Drift Velocity & Thermal Velocity33 mins
Drift Velocity & Thermal Velocity34 mins
Kirchoff's Law for VoltageFREE Class
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses
RELATED QUESTIONS :