10. The terminal voltage ve(t), and the terminal current is(t), for the device shown in Figure P1.4a are changing with time. Plots of these two variables are shown in Figures P1.4b and P1.4c, both as a function of time in [s). Device a) Find the numerical expressions for the power delivered by this device for the time interval 1[s] < t < 6[s]. b) Calculate the energy delivered by this device during the time interval 1[s] < t < 6[s]. Figure P1.4a in [A] Va [V] 4 2+ ++ 6 [s] t. [s] 'o i 2 3 4 5 6 Figure PI.4b 'oi2 3 Figure PL.4e

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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.