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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 |
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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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