salon mraziť fotografie unmagnetising of permanent magnet Nezávislý dôkladne neurčitý
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A softiron rod and a steel rod each have coils around them Both rods are initially unmagnetised The coils are attracted to circuits as shown in the second diagram State one advantage
The figure illustrates how B the flux density inside a sample of unmagnetised ferromagnetic material varies with B0 the magnetic flux density in which the sample is kept For the sample to
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