# Questions & Answers of Oscillators and Feedback Amplifiers

Question No. 32

In the Wien Bridge oscillator circuit shown in figure, the bridge is balanced when

Question No. 159

An oscillator circuit using ideal op-amp and diodes is shown in the figure.

The time duration for +ve part of the cycle is $\Delta {t}_{1}$ and for –ve part is $\Delta {t}_{2}$. The value of $\frac{\Delta {t}_{1}-\Delta {t}_{2}}{RC}$ will be _____________.

Question No. 13

In the feedback network shown below, if the feedback factor k is increased, then the

Question No. 43

A 3-line to 8-line decoder, with active low outputs, is used to implement a 3-variable Boolean function as shown in the figure

The simplified form of Boolean function F(A,B,C) implemented in ‘Product of Sum’ form will be