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Can a capacitor of suitable capacitance ...

Can a capacitor of suitable capacitance be use dto control a.c in place of the choke coil ?

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Yes, we can because the average power consumed in an idel capacitor is zero. Therefore, power dissipation is also zero in case of an ideal capacitor.
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Can a capacitor of suitable capacitance be used in an AC circuit in place of the choke coil ?

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MODERN PUBLICATION-ALTERNATING CURRENT -Revision Exercises Short Answer Questions
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