engineering recuitment BPSC AE Mock Test 2025 Heat Transfer Conduction Heat Conduction Through Hollow and Composite Cylinders
सिलेंडर का Log औसत क्षेत्रफल ‘A’ क्या हो सकता है?
1
\(\frac{{\log A_2 - \log A_1}}{{A_2 - A_1}}\)
2
\(\frac{{A_2 - A_1}}{{\log \left( {\frac{{A_2}}{{A_1}}} \right)}}\)
3
\(\frac{{\log A_2 - \log A_1}}{{\log \left( {\frac{{A_2}}{{A_1}}} \right)}}\)
4
None