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Assertion (A): DC servomotors are more commonly used in armature controlled mode than field controlled mode.Reason (R): Armature controlled Dc motors have higher starting torque than fiels controlled motors.(a) Both A and R are true and R is the correct explanation of A(b) Both A and R are true but R is not correct explanation of A(c) A is true but R is false(d) A is false but R is trueI have been asked this question during an interview for a job.The question is from Differential Equations of Physical Systems and Dynamics of Robotic Mechanisms topic in division Mathematical Models of Physical Systems of Control Systems

Answer» CORRECT answer is (a) Both A and R are true and R is the correct explanation of A

The BEST explanation: To get higher SPEED in FIELD controlled dc motor, field current is decreased with DECREASE in torque.


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