📢 Too many exams? Don’t know which one suits you best? Book Your Free Expert 👉 call Now!

  • google app store apple app store
  • ✖

      Question

      What is the main difference between alternating current

      (AC) and direct current (DC)?  
      A AC flows in one direction, while DC reverses direction periodically Correct Answer Incorrect Answer
      B DC flows in one direction, while AC reverses direction periodically Correct Answer Incorrect Answer
      C AC has a higher voltage than DC Correct Answer Incorrect Answer
      D DC is used in power transmission, while AC is used in batteries Correct Answer Incorrect Answer

      Solution

      Direct current (DC) flows in one constant direction.   Alternating current (AC) reverses its direction periodically.   AC is used for power transmission because it is easier to transform to different voltages.   DC is used in batteries, electronic circuits, and small devices.

      Practice Next
      ask-question