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QAIPMT-2006-Ph-2448: NEET 2006 Physics - Class 12 AIPMT-2006-Ph-2448 Solution: A transistor-oscillator using a resonant circuit with an…
A transistor-oscillator using a resonant circuit with an inductor L (of negligible resistance) and a capacitor C in series produce oscillations of frequency f. If L is doubled and C is changed to 4C the frequency will be f/2 f/4 8f
Multiple Choice Options
- A 72
- B 73
- C 74
- D 75
Step-by-Step Verified Solution
For berillium, R 1 = R 0 (9) 1/3
For germanium, R 2 = R 0 A 1/3
R 1 R 2 = ( 9 ) 1 / 3 A 1 / 3
_ 1 2 = ( 9 ) 1 / 3 A 1 / 3
_ 1 8 = 9 A
_ A = 72