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At DC, capacitor acts as _________(a) Open circuit(b) Short circuit(c) Resistor(d) InductorI got this question during an interview.My enquiry is from Transients in CR Networks in portion Capacitance and Capacitors of Basic Electrical Engineering

Answer» CORRECT answer is (a) OPEN circuit

Easy explanation: Capacitive Reactance XC = 1/(2πfC)

For DC, f=0 so, XC becomes infinite. Hence for dc, the capacitor ACTS as an open circuit.


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