-- card: 51185 from stack: in
-- bmap block id: 0
-- flags: 4000
-- background id: 4601
-- name: #206
----- HyperTalk script -----
on openCard
  global group,rightone
  put 18 into group
  put "C" into rightone
  pass openCard
end openCard



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Question #18

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T6A02  What does a variable resistor or potentiometer do?

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Its resistance changes when AC is applied to it

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It transforms a variable voltage into a constant voltage

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Its resistance changes when its slide or contact is moved

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Its resistance changes when it is heated

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Correct answer is C