232. Laminated cores, in electrical machines, are used to reduce
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233. The area of hysteresis loss is a measure of
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234. Permeance is to reluctance as conductance is to
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235. According to steinmetz hysteresis law,hysteresis loss in a material is proportional to
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236. The transformer cores operating at microwavefrequency range, are usually made of
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237. the time averaged Poynting vector is
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238. A plane electromagnetic wave propagating in free space in incident normally on a large slab of loss-less, nonmagnetic, dielectric material with e> Co. Maxima and minima are observed when the electric field is measured in front of the slab. The maximum electric field is found to be 5 times the minimum field. The intrinsic impedance of the medium should be
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