A 7.0 nC point charge is launched at 8,000 m/s directly upward in between the two capacitor plates depicted in the figure. The metal plates are separated by 4.0 cm and charged as shown to create a 350 N/C electric field in the region between the plates. (a) What is the potential difference between the two plates? (b) What is the magnitude of the electric force by the plates on the point charge? (c) What is the direction of the electric force by the plates on the point charge? [Circle your answer] A. Up B. Down C. Left D. Right E. Into the page F. Out of the page (d) If a particular magnetic field were present inside the capacitor, the charge will move upward at a constant velocity. What is the magnitude of this magnetic field? (e) What is the direction of the magnetic field needed to make the charge go straight up? [circle your choice] A. Up B. Down C. Left D. Right E. Into the page F. Out of the page

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Dielectric Breakdown

A dielectric is a material with low electrical conductivity and so is classified as an insulator. Dielectric materials are used to block the flow of electricity through them, allowing them to behave as an insulators. They can also be used to store electric charge or improve capacitance.Dielectrics have no free electrons for conduction because electrons are tightly bound to the nucleus. Because dielectrics contain a small number of electrons for electrical conductivity, they have a dipole. The two primary roles of dielectrics in electrical devices are insulation and electrical energy storage. An electric field polarizes the dielectric, and the polarization of the molecules allows dielectric materials to store charge.