For the systems described by equation: h(t) =u(t – 1) – u(t – 3) – 8(t–5) Determine the following: a) Plot the impulse response of the system. b) Is the system Stable. Why? c) Is the system Causal. Why ? d) What is the output of the system for input x(t) =u(t+2)– u(t+1)

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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.