Magnetic fields are produced by
A) a tiny fraction of moving electrical charges.
B) most moving electrical charges.
C) all moving electrical charges.
Correct Answer:
Verified
Q10: Refrigerator magnets are typically
A)short range.
B)long range.
C)none of
Q11: The end of a compass needle that
Q12: In general, a common magnet has
A)one pole.
B)at
Q13: The magnetic fields of a pair of
Q14: The conventional direction of magnetic field lines
Q16: Whereas electric charges can be isolated, magnetic
Q17: Surrounding every stationary electron is
A)a magnetic field.
B)an
Q18: An iron rod becomes magnetic when
A)opposite ions
Q19: Like kinds of magnetic poles repel while
Q20: The force that acts between a pair
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