Current Electricity

Question: A current i passes through a wire of length l, radius of cross-section r and resistivity $\rho$. The rate of heat generation is

1) $\frac{{{i^2}l\rho }}{{\pi {r^2}}}$

2) ${i^2}{\left( {\frac{{l\rho }}{{\pi {r^2}}}} \right)^2}$

3) ${i^2}l\,\rho \,/\,r$

4) $i\,l\,\rho \,/\,r$

Solution:

Explanation: No Explanation

Heating Effect of Current Electric Power

Rate this question:

★ ★ ★ ★ ★

Average rating: (0 votes)