1.3 A signal source that is most conveniently represented by its Thévenin equivalent has vs = 10 mV and Rs = 1 kΩ. If the source feeds a load resistance RL, find the voltage vo that appears across the load for RL = 100 kΩ, 10 kΩ, 1 kΩ, and 100 Ω. Also, find the lowest permissible value of RL for which the output voltage is at least 80% of the source voltage.
9.9 mV; 9.1 mV; 5 mV; 0.9 mV; 4 kΩ
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