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The ripple factor (ϒ) of inductor filter is_________

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The ripple factor (ϒ) of inductor filter is_________

(a) ϒ = RZ3/√2ωL

(b) ϒ = RZ/3√2ωL

(c) ϒ = RZ3√2/ωL

(d) ϒ = RZ3/√2ωL

I had been asked this question during an interview.

Origin of the question is Inductor Filters topic in division Application of Diodes of Electronic Devices & Circuits

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Correct choice is (b) ϒ = RZ/3√2ωL

For explanation: Ripple factor will decrease when L is increased and RL. Inductor has a higher dc resistance. It depends on property of opposing the change of direction of current.

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