All Problems

Electric Current

Problem 3.165

Two cylindrical conductors with equal cross-sections and different resistivities \(\rho_{1}\) and \(\rho_{2}\) are put end to end. Find the charge at the boundary of the conductors if a current \(I\) flows from conductor 1 to conductor 2

Reveal Answer
q=ε0(ρ2ρ1)Iq=\varepsilon_{0}\left(\rho_{2}-\rho_{1}\right) I