# FET – 59

59. The formula for a.c. drain resistance of a JFET is …………..

(a) ∆VDS/∆ID at constant VGS
(b) ∆VGS/∆ID at constant VDS
(c) ∆ID/∆VDS at constant VDS
(d) ∆ID/∆VDS at constant VGS

Explanation
Explanation : No answer description available for this question. Let us discuss.
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