For the circuit shown in Figure 2(c), determine the range of the load resistance and load current. [ the power dissipated by the Zener diode and its maximum wattage rating. i) ii) R= 1 kn V = 35 V Vz = 15 V Izm = 16 mA RL Figure 2(c)

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Speed control of motor

Speed control by DC motor-speed controller is required to realize variable speed drive. Whenever a motor drives a particular load, it is called drive, and variable speed drive refers to a load requiring variable speed. All this is obtained by a DC motor speed controller.