Difference of A.C. Motor & D.C motor
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A.C motor
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D.C motor
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1. A.C motor simple & robust
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1. D.C motor complicated having brushes communitors
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2. Routine work is negligible
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2. Too much routine work such as starting resistance
cleaning
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3. Rotor moving
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3. Armature moving
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4. No back e.m.f
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4. Back e.m.f produce
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5. A/C variable
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5. Output constant
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