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NEET-XII-Physics

39: Alternating Current

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  • #1
    What is the reactance of a capacitor connected to a constant DC source?
    Ans : The reactance of a capacitor is given by,
    `` {X}_{c}=\frac{1}{\omega C}``
    For a DC source, ω = 0
    `` \Rightarrow {X}_{c}=\frac{1}{0\times C}=\infty ``
    So, for a constant DC source, reactance of a capacitor is infinite.
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