Consider a rotating disk of radius R with uniform surface charge density σ and angular rotation speed ω. (a) show that for an annular strip of radius r, and width dr that the current dI = ωσrdr HINT: see class notes from previous week (b) Show that the magnetic field in the center of the disk is given by
B = 1μ0σωR 2
***************************************************************************************************
Check the answer and let me know immediately if you find
something wrong... I will rectify the mistakes asap if any
Get Answers For Free
Most questions answered within 1 hours.