-- card: 109575 from stack: in
-- bmap block id: 0
-- flags: 0000
-- background id: 2707
-- name: #258
----- HyperTalk script -----
on openCard
  global group,rightone
  put 21 into group
  put "B" into rightone
  pass openCard
end openCard



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Question #21

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2E-12-1.1 What is the term used to describe a current that flows only in one direction?

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Alternating current

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Direct current

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Periodic current

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Pulsating current

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Correct answer is B