The resistance of the device D in Figure P3.80 is a non-linear function of pressure P. The i -v characteristics of D are shown as a family of curves for various pressures.
Assume:
VS = 3.0V R = 100?
Construct the DC load line and determine the current through D when P = 40 psig.
Find:
The DC load line, and the current through the nonlinear device when P = 40 psig.
Analysis:
Circuit characteristic [DC load line]:
The circuit characteristic is a linear relation that can be plotted by plotting the two intercepts and connecting them with a straight line. Solutions are at the intersections of the circuit and device characteristics.
Reading from where the load line crosses the P = 40 psig:
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