The shape of the speed-torque characteristics in DC shunt motor is __________(a) Rectangular Hyperbolic(b) Whole x-y plane(c) Circle(d) EllipseI have been asked this question by my school teacher while I was bunking the class.This interesting question is from Countercurrent Braking of DC Shunt Motors topic in section Braking of DC Motors & Induction Motors of Electric Drives

The shape of the speed-torque characteristics in DC shunt motor is ___

1.	The shape of the speed-torque characteristics in DC shunt motor is __________(a) Rectangular Hyperbolic(b) Whole x-y plane(c) Circle(d) EllipseI have been asked this question by my school teacher while I was bunking the class.This interesting question is from Countercurrent Braking of DC Shunt Motors topic in section Braking of DC Motors & Induction Motors of Electric Drives
Answer» CORRECT OPTION is (a) Rectangular Hyperbolic To elaborate: The SHAPE of the speed-torque characteristics in the DC shunt motor is a rectangular hyperbola. The motor EQUATION is Eb=Vt-IaRa=Km∅ωm. N=(Vt/KmIa)-Ra/Km. Ia∝√T.N∝1÷√T.

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