Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEET 2006
Exam
NEET
Year
2006
Subject
Physics
Chapter
Semiconductors

NEET 2006 · Physics · Semiconductors

A transistor-oscillator using a resonant circuit with an inductor L...

A transistor-oscillator using a resonant circuit with an inductor LL (of negligible resistance) and a capacitor CC in series produce oscillations of frequency ff. If LL is doubled and CC is changed to 4C4 \mathrm{C}, the frequency will be:

Options

  1. Af/2f / 2
  2. Bf/4f / 4
  3. C7×10−247 \times 10^{-24}
  4. D10−2210^{-22}

Correct answer

D. 10−2210^{-22}

Step-by-step solution

According to the question and f=12πLCf′=12π2LC4 Vf′=12212πLC=f22\begin{aligned} f & =\frac{1}{2 \pi \sqrt{\mathrm{LC}}} \\ f^{\prime} & =\frac{1}{2 \pi \sqrt{2 \mathrm{LC} 4 \mathrm{~V}}} \\ f^{\prime} & =\frac{1}{2 \sqrt{2}} \quad \frac{1}{2 \pi \sqrt{L C}} \\ & =\frac{f}{2 \sqrt{2}} \end{aligned}
Practice Semiconductors on Quantrex Academy →

More from Semiconductors

For two inputs A and B and output Y, the Boolean expression for NOR gate is MHT CET Medical 2026For an n-type semiconductor, the relation between the number density ' n_h ' and ' n_e '… MHT CET Medical 2026A silicon crystal is doped with 5 × 10^ 17 \ cm^ -3 atoms of boron. The electron… MHT CET Medical 2026If the current gain in common-base configuration (α ) of a transistor increases from 0.95… MHT CET Medical 2026Out of the following what is used to detect the intensity of light ? MHT CET Medical 2026The color of light emitted by an LED is determined primarily by which of the following… MHT CET Medical 2026Which of the following is true for a p-type semiconductor? MHT CET Medical 2026In case of semiconductors, the band gap between the valence band and conduction band is MHT CET Medical 2026 Full Semiconductors list All NEET PYQs