K 4- The open loop transfer function of unity feedback system is By what factor the gain (K) should s(Ts+1) be multiplied so that the damping ratio is increased from 0.2 to 0.8?

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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.