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An inductor is generally constructed as a coil of conducting material, characteristically copper wire, wrapped around a core either of air or a ferromagnetic material. Core materials have higher permeability than air; confine the magnetic field closely to the inductor, thereby increasing the inductance. Inductors come in variable shapes. Most are developed as enamel coated wire wrapped round a ferrite bobbin with wire uncovered on the outside whereas some enclose the wire totally in ferrite and are known as "Shielded". Some inductors have adjustable core, which enables changing of the inductance. Small inductors can be imprinted directly onto a printed circuit board by set out the trace in a spiral pattern. Small value inductors can be built on integrated circuit using the same process that are use to make transistors. Inductors use to block very high frequencies are some time made with a wire passing through a ferrite cylinder.
#queston.assigenent of oxalic acid
Q. Define Fermi energy. Write down the expression for Fermi Dirac distribution law. Deduce an expression for Fermi energy of a system of free particles. Sol. The Fermi Energy
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A body moves along x-axis with velocity v at position x. If the plot v-x is an ellipse with major axis 2A and minor axis 2u, what is the modulus of maximum acceleration?
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Kinds of graphs in physics
can whole charge of a body be transfered to other?
Current flowing in a certain PN junction at room temperature is 2 X 10 -7 A, when a large reverse bias voltage is applied. Calculate current when a forward voltage of 0.1 V is appl
Which of two, namely potentiometer and voltmeter is preferable to calculate the emf of a batter? Why? When is the series combination of cells advantageous and why?
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