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The rms value of ripple current for an L section filter is_______

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The rms value of ripple current for an L section filter is_______

(a) IRMS=√2/3*XL*VDC

(b) IRMS=√2/3*XL*VDC

(c) IRMS=√2/3*XL *VDC

(d) IRMS=√2/3*XL*VDC

This question was posed to me in an internship interview.

The origin of the question is L-Section Filter in division Application of Diodes of Electronic Devices & Circuits

1 Answer

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Correct answer is (a) IRMS=√2/3*XL*VDC

To explain I would say: The ac current through L is determined primarily by XL=2ωL. It is directly proportional to voltage produced and indirectly proportional to the reactance.

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