A(n) ______________ needs current from an external source to maintain its magnetic field.
Correct Answer:
Verified
Q3: The entire group of magnetic field lines,
Q4: Flux _ is the number of magnetic
Q5: One weber per square meter is called
Q6: The electric or magnetic effect of one
Q7: The ability to concentrate magnetic flux is
Q9: A _ is a switch with contacts
Q10: _ field lines are unaffected by nonmagnetic
Q11: What are the base units for permeability?
A)
Q12: What maintains the strength of the permanent
Q13: What are the two classes of magnets?
A)
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