Question

Model a uniformly charged ring as a set of point charges placed on a circle. Place the ring in the yz plane so that its axis is along the x axis. Give the ring a total charge of Q=50×10−9 C and a radius of R=0.1 m.

(a)  

Start an electron from rest at location 〈0.15,0,0〉 m, and model its motion. In each step you will need to calculate the net electric field at the location of the electron. Describe the motion you observe.

(b)  

Vary deltat and the number of point charges used to model the uniformly charged ring to make sure your calculation is accurate.

(c)  

Experiment with different initial locations that do not lie on the axis of the ring. You may also wish to experiment with giving the electron some initial momentum. Make a screen shot of the most interesting trajectory you find. Figure 15.76 is an example of one such trajectory.

Answer 1