The conductivity of a material usually depends on: Select your answer. length and cross-sectional area volume and surface area temperature and frequency charge density and number of electrons

Q: Calculate the cross-sectional area, in mm2, of a piece of copper wire, 40 m in length and having a…

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Q: Problem 1 The ends of a length of a wire are labeled p and q. If the current in the wire is lpq=-10…

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Q: Calculate the cross-sectional area, in mm2, of a piece of copper wire, 40 m in length and having a…

A: Given, l=40 mR=0.25 ohmρ=0.02×10-6 ohm A = ?

Q: Q3) (i) Calculate the electrical conductivity of a piece of pure Si if it is given the number of…

A: Answer : 3 (i) : Given that  ni=1×1010 cm3μe=1350 cm2.V-1.s-1μh=450 cm2.V-1.s-1T=300 K Although,…

Q: Problem 2: Two cascaded system is shown below. If the transmission parameters of the Network N1 and…

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Q: 3. An insulator is in the form of a linear curve (in the unit of meter) with the parametric…

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Q: Diagram of the problem, necessary formulas, clearance and numerical solution. A steady current of…

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Q: If we estimate that the number of conduction electrons in a metal like silver is the same as that of…

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Q: Determine the electrical conductance of a 2m length of nichrome (a high temperature Ni Cr alloy)…

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Q: Why electrons are more mobile than the holes? Please explain

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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.