engineering recuitment DRDO Technician A 2022 Mock Test Series (Tier I) Network Theory Network Elements
The formula to find the specific resistance (ρ) where length (I), cross sectional are (a), and Resistance (R) is______
1
\(\rho = \frac{l}{{RA}}ohm - metres\)
2
\(\rho = \frac{{RA}}{l}ohm - metres\)
3
\(\rho = \frac{R}{{Al}}ohm - metres\)
4
\(\rho = \frac{{Al}}{R}ohm - metres\)