a) The bias resistor R2 in Figure. 5 is replaced by a 15k2 potentiometer. Compute minimum resistance setting of potentiometer to cause saturation. +15 V RC 1.5 kN 22 k Veusa) - 0.4V R2 X.Y kf2 RE XYO 2

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Fourier Series

Most of the incidents studied in the field of Engineering and Science as a function of time. For example, current and voltage are in the alternating current circuit. These occasional activities can be analyzed in the activity components (fundamental frequency and harmonics) through a process called Fourier analysis.