- #1
Shivang kohlii
- 19
- 1
Homework Statement
1.In the WE-11 resistance is calculated by integrating and that too by taking length as dr and area as the CSA of the small cylinder ..
Shouldn't length be l and area by 2πrdr..?
I also don't understand why can't we simply use
Dl/A formula
, Where A =π((2R)^2 - R^2)
2) in second question the initial resistance is calculated by the method I think Is correct .. so then why are two different methods being used for same situation??
Homework Equations
R= DL/A
D= specific resistance
L= length of resistor
A= area