Analog Circuits Mock Test 8

1. If the doping concentration of the gate increases, the internal pinch-off voltage ___________

2. In a clapp oscillator with three capacitor C₁, C₂, C₃, C₁ is used as upper capacitor in voltage divider, C₂ is used as lower capacitor in voltage divider and C₃ is the third capacitor. The frequency of operation will be close to (Assume C₁ parallel C₂ is C₃).

3. In a clapp oscillator with three capacitor C₁, C₂, C₃, C₁ is used as upper capacitor in voltage divider, C₂ is used as lower capacitor in voltage divider and C₃ is the third capacitor. For perfect operation which of these capacitor should have minimum value?

4. The Hartley oscillator is less preferred than due to Colpitts oscillator’s performance in __________

5. Capacitive circuit configuration in Colpitts oscillator improves _____________

6. The frequency variation error occurred when crystal is re-powered after several hours is termed as ___________

7. The parallel capacitance in the equivalent circuit of crystal oscillator represents __________

8. Active element used in Colpitts oscillator is _________

9. Consider the following circuit. Given that V_DD = 15V, V_P = 2V, and I_DS = 3mA, to bias the circuit properly, select the proper statement.

10. How is the metallurgical channel thickness between the gate and the substrate related to the doping concentration of the channel?