9. Van de Graff generators, which are used in many science demonstrations to make people's hair "stand up", are positively charged and have an electric field strength of 10000 N/C. a. Draw the electric field around the surface of the dome of the generator. [1] b. A proton is brought close to the electric field created by the generator. Describe the path it will take. [1] c. How would the magnitude of the proton's electric potential energy change as it is brought closer to the generator? [1] d. The gravitational field strength created by the generator is 6.7 x 10-9 N/kg at the surface of the generator. Will the proton be affected more by the gravitational field or the electric field? Explain. [2]