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Commercial electric motors do not use (a) an electromagnet to rotate the armature (b) an effectively large number of turns of conducting wire in the current-carrying coil (c) a permanent magnet to rotate the armature (d) a soft iron core on which the coil is wound |
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Answer» The answer is (c) a permanent magnet to rotate the armature In electric motors Electro magnet is used instead of permanent magnet. |
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