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Which statement is correct about DC series motor?(a) Has its field winding consisting of thick wire and more turns(b) Has a poor torque(c) Can be started easily without load(d) Has its field winding consisting of thick wire and less turnsThis question was addressed to me in an interview for internship.This interesting question is from Operating Characteristics of DC Series Motor -1 in portion Characteristics of DC Motors of DC Machines

Answer»

The correct choice is (d) Has its field winding consisting of thick wire and LESS turns

To EXPLAIN: When field winding is connected in series it has to be of MADE by thick wire. When field winding is connected in PARALLEL it has to be of made by thin wire. So, thick wire is used with less number of turns while thin ONE is used with more number of turns.



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