11.4 The noninverting buffer op-amp configuration shownin Fig. Pl 1.4 provides a direct implementation of the feedbackloop of Fig. 11.1. Assuming that the op amp has infiniteinput resistance and zero output resistance, what is /?If A= 1000, what is the closed-loop voltage gain? What is theamount of feedback (in dB)? For Vx = 1 V, find Vo and Vz. If A decreases by 10%, what is the corresponding percentage

Ahot wire operates at a temperature of 200°c while the air temperature is 20°c. the hot wire element is a tungsten wire of 5 um diameter and 2 mm in length. plot using excel current, heat transfer and heat generated by the wire for air velocity varying from 1-10 m/s in steps of lm/s? matlab the sensor voltage output, resistance, or assume nu 0.989 re033pr13 take air properties at tr (200°c20°c)/2 = 110°c properties of tungsten: c 0.13 kj/kg.k 3 p 19250 kg/m k (thermal conductivity) = 174 w/m.k