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What is the value of capacitive reactanc...

What is the value of capacitive reactance connected to DC?

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The capacitive reactance of a capacitor connected to DC is infinity.
Note : `X_(C)prop(1)/(f)and'f'" for "DC=0`. Hence `X_(C)=underset(("infinity"))prop`.
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Knowledge Check

  • A series combination of resistor ( R ), capacitor ( C ) is connected to an .C. source of angular frequency omega . Keeping the voltage same, if the frequency is charged to (omega)/(3) , the current becomes half of the original current. Then the ratio of the capacitive reactance and resistance at the former frequency is

    A
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    B
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    D
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  • Five capacitors of 20mu F capacity each are commected to a D.C potential of 100 volts shown in the figure The equivalent capacitance between the point A and B will be equal to

    A
    `40mu F`
    B
    `30mu F`
    C
    `50muF`
    D
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