Lec 6 MIT 8 02 Electricity and Magnetism Spring 2002

Description: of the return stroke, can be done with a camera, which is called the Boys camera. Let me first explain to you in detail -- in principle how it works. If this is the area on the film that is exposed by your lens suppose that I move the film at a very high speed to the left and suppose the step leader comes down and it sees some light from the step leader, then I may see on the film this. Some light. And from here to here would then be the 5 milliseconds which it takes the step leader to go ...