Recent content by Mr.Joule

Hey :) Thanks a lot for your help. Let's give it a second try step by step. 1. why does h → ∞ ? it isn't an infinitely long cylinder! 2. The cross section of the wire is A (constant), so dR(r) = rho * dL/A = (rho * 2pi * dr)/A, right? Now, di = emf(r)/R(r) with d emf(r) = 2pi*rdr dB/dt...

Homework Statement We have a cylinder (radius r, height h, conductivity γ) and it is immersed in a variable magnetic field B(t) = B0* e^(-t/T). The field is parallel to the axis of the cylinder. The problem then asks to find the heat dissipated by the cylinder after an infinitely long...