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Two identical coils of negligible resistance when connected in series across a 200V,50Hz source draws a current of 10A. When the terminals of one of the coils are reversed, then current drawn is 8A. The coefficient of coupling between the two coils is0.11

Answer» Two identical coils of negligible resistance when connected in series across a 200V,50Hz source draws a current of 10A. When the terminals of one of the coils are reversed, then current drawn is 8A. The coefficient of coupling between the two coils is
  1. 0.11


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