What constitutes an electromagnet?
A) a core material with high reluctance with a coil of wire around it
B) a core material that can be easily magnetized with a coil of wire around it
C) a permanent magnet with a coil around it
D) a permanent magnet
Correct Answer:
Verified
Q7: Magnetomotive force is:
A) directly proportional to the
Q8: The amount of magnetomotive force is inversely
Q9: Magnetic flux lines are never continuous outside
Q10: The right hand rule is used for
Q11: An example of an electromagnetic device is:
A)
Q13: There is 1.5 A of current through
Q14: What is the amount of flux in
Q15: Materials that can be magnetized are called
Q16: Permanent magnets are characterized by the fact
Q17: The S.I. is the unit of
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