Question

3) The electric field between a charged Van de Graaf generator and its grounding sphere is generally non uniform. This is true in the example diagrammed below where the surface of the generator is at a potential of 5000 V relative to the grounding sphere which is at a potential of 0 V. The shapes of several equipotential surfaces are sketched as well as the velocity vector of an electron that is crossing the 1200 V equipotential surface at a speed of 5.45 x 10*m/s a) Determine the change in the electron's potential energy that will occur if the electron moves from the 2500 V equipotential surface to the surface of the generator b) How much kinetic energy will the electron have as it reaches the surface of the generator from the 1200 V surface assuming it doesn't collide with anything along the way? c) How much work did the electric field do on the electron during the described motion? 5000 V election 0 V Van de Graaf generator grounding sphere

Answer 1