9.81 a) Show that the impedance seen looking into the terminals a,b in the circuit in Fig. P9.81 is given by the expression Zab Siguro DO 81 = Zab - 1 + b) Show that if the polarity terminal of either one of the coils is reversed that ZL (₁ 1 N₁ N₂. ZL - 2 №₁ N₂

A conveyor motor has a N.O. START button (I:0/3) and a N.C. STOP button (I:0/4) to start and run the conveyor motor (O:0/4) when the START is pushed and released. When the conveyor is running bottles will pass a proximity sensor (I:0/2).  After 12 bottles have passed the sensor output O:0/5 must be turned ON (to have the bottles removed by a different machine) and the counter must be reset.  Sketch the program rungs to make this work.

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I just need the count up range for this question. Example:0-7 or 0-5 it's asking what is the numbers it can display on a digital display.