The shape of the current-torque characteristics in DC shunt motor is __________(a) Rectangular Hyperbola(b) Parabola(c) Straight line(d) EllipseI have been asked this question in a job interview.I'd like to ask this question from Countercurrent Braking of DC Shunt Motors in portion Braking of DC Motors & Induction Motors of Electric Drives

The shape of the current-torque characteristics in DC shunt motor is _

1.	The shape of the current-torque characteristics in DC shunt motor is __________(a) Rectangular Hyperbola(b) Parabola(c) Straight line(d) EllipseI have been asked this question in a job interview.I'd like to ask this question from Countercurrent Braking of DC Shunt Motors in portion Braking of DC Motors & Induction Motors of Electric Drives
Answer» CORRECT OPTION is (c) Straight line The explanation is: The SHAPE of the current-torque characteristics in the DC shunt motor is a straight line. The motor equation is Eb=Vt-IaRa=Km∅ωm. T=Km∅IA. ∅∝If. Torque ∝ Ia.

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