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Kamaria explains the difference between alternating and direct currents
to her younger brother. What is the primary difference
between the two
currents?
A. Direct current has a constant amount of current, while alternating
current has a varying amount of current.
B. Direct current has a varying amount of current, while alternating
current has a constant amount of
current.
C. Direct current keeps changing direction, while alternating current
always flows in one direction.
D. Direct current always flows in one direction, while alternating current
keeps changing direction.

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GinnyAnswer

Final answer:

Alternating current periodically changes direction and magnitude, while direct current flows in only one direction with a fixed magnitude.


Explanation:

Alternating current (AC) periodically reverses direction, while direct current (DC) flows in only one direction. AC changes its magnitude at regular intervals, whereas DC maintains a fixed magnitude. In AC, the flow of electric charge periodically changes, illustrated in sinusoidal patterns, compared to DC's constant voltage and unidirectional flow.


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