If the forward voltage in a semiconductor diode is changed from 0.5V to 0.7 V, then the forward current changes by 1.0 mA. The forward resistance of diode junction will be(a) 100 Ω(b) 120 Ω(c) 200 Ω(d) 240 Ω
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When the AC signals are zero, Ic = Icq and VCE = Vceq. When currents and voltages vary, the operating point moves along the AC loadline. The circuit shown in figure 1 has been designed for maximum voltage swing by placing the operating point in the middle of the AC load line. A simple equation assures maximum swing.
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