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The maximum Voltage across the capacitor Vc(t)=Vo(1- e^-t) is __________

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The maximum Voltage across the capacitor Vc(t)=Vo(1- e^-t) is __________

(a) Vo

(b) 2Vo

(c) 3Vo

(d) -Vo

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This question is from Dynamic Braking of DC Shunt Motors topic in portion Braking of DC Motors & Induction Motors of Electric Drives

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Right choice is (a) Vo

To explain I would say: The Vc(t)=Vo(1- e^-t) is Vo is the transient equation of the capacitor Voltage. At the steady state (t=∞) Vc(t)=Vo(1- e^-∞) is Vo. The maximum Voltage across the capacitor is Vo.

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