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An electric current that changes directions at regular intervals is called a. directional current. c. reversible current. b. alternating current. d. fluctuating current.
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An electric current that changes directions at regular intervals is called

a. directional current.
c. reversible current.
b. alternating current.
d. fluctuating current.

User Lucas Abbade
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The right answer is B, that kind of current is called also AC and you can look at the power supply module of your phone or computer - there will be an information about types of transformed currents, one of them is AC.
User Samnau
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