MCH 473

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Uploaded: 28.09.2014
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473. The coil which is reeled up on not magnetic cylindrical framework has N1=250 rounds and inductance of L1 = 36 мГн. To increase inductance of the coil to L2=100 мГн, the winding of the coil was removed and replaced with a winding from thinner wire so that length of the coil remained former. How many rounds appeared in the coil after rewind?

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