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14 cards from this deck
Current flowing in only one direction at constant voltage
Horizontal line
Current that reverses direction at regular intervals
Alternates between positive and negative values
More efficient transfer - transformers easily change P.D.
505050 Hz
230230230 V
+230+230+230 V and −230-230−230 V
50 times per second
Used to see the pattern of electrical current
frequency=1t\text{frequency} = \frac{1}{t}frequency=t1
Time of one cycle
Remains constant
Changes direction periodically
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