A

Admin • 833K Points
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Q. Colpitts oscillator operating at 50 MHz has an inductor in the feedback section of value 0.10µH. then the values of the capacitors in the feedback section is:

  • (A) 100 pf, 100 pf
  • (B) 100 pf, 50 pf
  • (C) 70 pf, 130 pf
  • (D) 80 pf, 60 pf

Explanation by: Admin

the equivalent value of series combination of the capacitors is given by 1/ ω2l. this gives the equivalent capacitance value of 200 pf. c1c2/ (c1+c2) =200 pf. c1

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