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Analogue Threshold switching
a) Include a variable potential divider to the schematic diagram to control the transistor base voltage
b) Include the potential divider components to your circuit and determine the threshold Switching voltage and value of the variable resistor at that point
c) Describe how the threshold point could be adjusted to cater for different resistances .
Q. Find the currents I x using current division and equivalent resistor reductions for the networks given in Figure.
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(a) A universal shift register can shift in both the left-to-right and right-to-left directions, and it has parallel-load capability. Draw a circuit for such a shift register.
Q. Let the solenoid carry an alternating current of 10 A (rms) at 60 Hz instead of the direct current. Find an expression for the instantaneous force.
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