Which of the following statements is incorrect? (A) Both ac and dc dynamo have a field magnet. (...

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Which of the following statements is incorrect?
(A) Both ac and dc dynamo have a field magnet.
(B) Both ac and dc dynamo have an armature.
(C) Both ac and dc dynamo convert mechanical energy into electrical energy.
(D) Both ac and dc dynamo have slip rings.
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