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Q. |
Hartley oscillator has inductance values of 12 mH and 4 mH in the feedback section and a capacitor of 4 nF. Then the resonant frequency of the circuit is: |
A. | 19.89 khz |
B. | 25 khz |
C. | 45 khz |
D. | 12 khz |
Answer» A. 19.89 khz | |
Explanation: resonant frequency of hartley oscillator is given by 1/ 2π√(c1 (l1 + l2)). substituting the given values in the above equation, cut-off frequency is 19.89 khz. |
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