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The resistance of NVC is _______(a) Small(b) Large(c) Infinite(d) ZeroThe question was asked in unit test.My doubt is from Starting of DC Motors in section DC Motors of DC Machines |
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Answer» RIGHT answer is (a) Small Explanation: The resistance of no volt coil (NVC) is small. NVC resistance FORMS a part of field resistance when resistor rotating handle of three-point starter is moved from min. to max. POSITION. STARTING resistance is also added to the field circuit. |
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