How Everything Works
How Everything Works How Everything Works
 

QUESTIONS AND ANSWERS
 
Question 261

Why is direct current so much better than alternating current?
It depends on the situation. You cannot use a transformer with direct current, so in that sense, alternating current is better. But many electronic devices need direct current because they require a steady flow of charges that always head in the same direction. So there are times when you need DC and times when you need AC.
         

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