Permanent magnets are characterized by the fact that:
A) they lose their magnetism very quickly.
B) they produce an electrostatic field.
C) their magnetic domains are aligned north-to-south.
D) their magnetic domains are randomly oriented.
Correct Answer:
Verified
Q11: An example of an electromagnetic device is:
A)
Q12: What constitutes an electromagnet?
A) a core material
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
Q17: The S.I. is the unit of
Q18: A permanent magnet is basically a coil
Q19: The symbol for flux density is:
A) O
B)
Q20: Unlike magnetic poles attract each other, and
Q21: Relative permeability of a magnetic material is
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