CBSE Class 10 Answered
the resistance of a wire of 0.01 cm radius is 10 ohm.if the resistivity of the material of the wire is 50*10^-8 ohm meter find the length of the wire
Asked by prassanna.j | 03 Sep, 2023, 12:28: PM
Resistance R of wire of length L is 

Where ρ is resistivity of material of wire and A is area of cross section .
If r is rhe radius of cross section of wire , then resistance R is 

Hence of length L of wire is


Answered by Thiyagarajan K | 03 Sep, 2023, 15:59: PM
Application Videos
Concept Videos
CBSE 10 - Physics
Asked by monikamanishgoel | 19 Nov, 2024, 09:47: AM
CBSE 10 - Physics
Asked by kamalaranjanmohantymohanty5 | 06 Jan, 2024, 10:05: AM
CBSE 10 - Physics
Asked by nandhikasugumar | 05 Oct, 2023, 16:01: PM
CBSE 10 - Physics
Asked by daniya062008 | 02 Oct, 2023, 20:25: PM
CBSE 10 - Physics
Asked by prassanna.j | 03 Sep, 2023, 12:28: PM
CBSE 10 - Physics
Asked by prassanna.j | 03 Sep, 2023, 12:21: PM
CBSE 10 - Physics
Asked by prassanna.j | 03 Sep, 2023, 12:11: PM
CBSE 10 - Physics
Asked by prassanna.j | 28 Aug, 2023, 21:49: PM
CBSE 10 - Physics
Asked by praveenkumae975 | 06 Feb, 2023, 19:19: PM