How is alternating current $(AC)$ different from direct current $(DC)$?

  • A
    Alternating current flows in one direction,while direct current changes direction.
  • B
    Alternating current changes its magnitude and direction periodically,while direct current maintains a constant magnitude and direction.
  • C
    Direct current is used in household appliances,while alternating current is used in batteries.
  • D
    There is no difference between alternating current and direct current.

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