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Title: Find the magnetic field strength, magnetic flux and flux density in the core of the following question? Post by: Datiyota on Mar 1, 2013 A toroid has u r = 600 and is wound with 550 turns of copper wire carrying a current of 2 A. It has a cross-sectional area of 4x10^-3m^2 and a mean radius of 100mm.
Find the magnetic field strength, magnetic flux and flux density in the core. Also and explanation and working would be great since reading over the topic I wasn't sure of how to apply what the text book said since there were no worked examples. Thanks. Title: Find the magnetic field strength, magnetic flux and flux density in the core of the following question? Post by: datha on Mar 1, 2013 to fine the flux of field...u hve to use this formula
B=munot N I/2 pie r the value of mu not is constant..tht is.4(3.142) *10^-7 web/amp m just put al those values in this formula.. B=4(3.142)x10^-7x550x2/(2x3.142x0.1) convert 10mm into m which is radius by divinding with 1000. B=2.2x10^-3 weber/m^2 or tesla now u get magnetic field....for finding the magnetic flux density this is a formula magnetic flux=magnetic field * Area magnetic flux=2.2x10^-3 * 4x10^-3 magnetic flux=8.8x10^-6 webers now flux density flux density=magnetic flux/area flux density=8.8x10^-6/4x10^-3 flux density=2.2x10^-3 web/m^2 how u will get tht. |