A thin, uniformly charged ring of radius a = 10cm carries a total electric charge Q=3microCoulombs and rotates with angular speed w = 70rad/s

A thin, uniformly charged ring of radius a = 10cm carries a total electric charge Q=3microCoulombs and rotates with angular speed w = 70rad/s counterclockwise about the z-axis. Find the magnetic field at the ring's center.
What is the magnitude of the magnetic field?
B = 1T

Is the current provided by the battery equal to the positive or negative rate of change of charge on the capacitors?___________

Write the correct Kirchoff loop rule________________
Write the correct differential relationship between current I and charge Q_______________-
Write the correct dependence of Q on t_____________________
Draw vs t including Q at t=0, t at 63%Qfinal, & limit as t goes to infinity: