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With some initial change at t = 0+, a capacitor will act as ___________

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With some initial change at t = 0+, a capacitor will act as ___________

(a) open circuit

(b) short circuit

(c) a current source

(d) a voltage source

I got this question in a national level competition.

Enquiry is from Voltage and Current Sources in portion Circuit Elements and Kirchhoff’s Laws of Network Theory

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The correct answer is (d) a voltage source

Explanation: At t=0+, the capacitor starts charging to a particular voltage and acts as a voltage source.

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