These instruments help aircraft avoid collision with other aircraft. * Magnetic compass ILS DME TCAS VOR GPS

Q: Determine the Resistance of an electric fire which takes a current of 12 A from a 240 V supply. Find…

A: Given an electric wire with, Current, I=12 A Voltage, V=240 V Time, t=20 hrs

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A: The advantages of the AC transmission in comparison to the DC transmission  are as follows:  The…

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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.