The shape of the speed-torque current characteristics in DC series motor are __________(a) Rectangular Hyperbolic(b) Parabola(c) Circle(d) EllipseThe question was asked during an interview.The query is from Dynamic Braking of DC Series Motors topic in portion Braking of DC Motors & Induction Motors of Electric Drives

The shape of the speed-torque current characteristics in DC series mot

1.	The shape of the speed-torque current characteristics in DC series motor are __________(a) Rectangular Hyperbolic(b) Parabola(c) Circle(d) EllipseThe question was asked during an interview.The query is from Dynamic Braking of DC Series Motors topic in portion Braking of DC Motors & Induction Motors of Electric Drives
Answer» CORRECT option is (a) Rectangular Hyperbolic Easiest explanation: The SHAPE of the speed-torque CHARACTERISTICS in the DC series 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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