Recent content by Roger Dalton

My first assumption is that the temperature dependence on the mobilities can be neglected, and so we would have: $$R_H(T)= \frac{1}{e} \frac{p_v(T)\mu_h^2-n_c(T)\mu_e^2}{(p_v(T)\mu_h+n_c(T)\mu_e)^2}$$ The expression for the electron and hole densities could be derived from...

The current density between the plates is J = 1 A/m2. So, I have to calculate first the magnetic energy in the whole space. Out of the sheets, there is no current, so the magnetic energy would be 0 in that places. Hence, U = J(1/2) \int_{inside the plates}A(r)dr, where A(r) is the vector...

Thank you very much! Your answers are being really useful for me. I'm now in my second year of undergraduate Physics in Spain, so if everything goes fine, I'll have my third year in the UK (I don't know if the whole year or only half). With study plans at first, there wouldn't be any problem...

Hello everyone! I'm studying Physics at college and next year I'll be doing a course abroad in the UK. After doing some research and considering my college's international agreements I have to decide between Durham University, Manchester University, and the Imperial College of London, but I...