Physics, 30.08.2019 16:30 parkermacyow71bm

Which is not a characteristic of a magnetic field produced by a current?
a. it can be turned on and off.
b. its direction can be reversed.
c. its strength can be changed.
d. its speed can be slowed.

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Which is not a characteristic of a magnetic field produced by a current?
a. it can be turned...