GATE EE 2021 : Analog Electronics Quiz 4 (App update required to attempt this test)

Consider the Colpitts oscillator circuit shown in figure below with parameters L = 1 μH, C₁ = 1 nF, C₂ = 1 nF, R = 4 kΩ. What is the oscillator frequency (in MHz, rounded upto 2 decimal values)?

A 555 timer is configured to run in astable mode. Determine the duty cycle of the output.

Find the relation between R₁ and R₂ for sustained oscillations.

Design the RC elements of a Wein bridge oscillator as in below figure for operation at f₀ = 10 kHz

Consider the circuit shown in the figure below:

For sustained oscillations, the value of must be equal to:-

The circuit shown is a sinusoidal oscillator. Find the value of resistor R_x (in kΩ) for sustained oscillations.