In Fig. if the CMRR of the operational amplifier is 60dB, then the magnitude of the output voltage is

(a) Specify the type of the negative feedback in the JFET amplifier shown in Fig.
(b)Calculate the voltage gain (V₀/V_i), of the amplifier with no feedback (R_f=$$\infty $$).
(c)Determine the value of the resistance R_f, required to give a voltage gain (V₀/V_i), or - 10.

Companding in PCM systems leads to improved signal - to - quantization noise ratio. This improvement is for

White Gaussian noise is passed through a linear narrow band filter. The probability density function of the envelope of the noise at the filter output is: