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Exam Questions Papers - Engineering
Q1: A Hartley oscillator uses FET with gm of 2 ms and rd = 2 KΩ. The total coil inductance is 10 μH with turns ratio of input to output side of 1 : 10. It is tuned with a 50 pf capacitor. Find frequency of oscillations, amplifier gain margin in dB.A
7.11 MHz, 13.97 dB
B
7.3 MHz, 14.1 dB
C
6.93 MHz, 12.9 dB
D
7.4 MHz, 13 dB
ANS:A - 7.11 MHz, 13.97 dB ![]() ![]() |


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