a. What does the feedback in control system mean? R(s) C(s) Figure 1 b. The figure 1 shows the block diagram of a positive feedback control system. Sketch the corresponding block diagram of a negative feedback control system. Find the closed loop transfer function of the negative feedback control system using the block diagram algebra rules. d. State the effect of feedback on overall gain of a negative feedback control system. e. State the effect of feedback on stability of a negative feedback control system. f. C. Describe the ways a control system can be represented. g. Describe the classification of control systems based on signals used. h. Describe the classification of control systems based on manipulated variables and controlled variables. Describe the classification of control systems based on feedback. j State the principles of homogeneity and superposition. i.

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Maximum power transfer theorem

A resistive load will consume maximum power from a network when the load resistance is equal to the resistance of the network as viewed from the open-circuit terminals, with all energy sources removed leaving only the internal resistances. Physicist Moritz von Jacobi introduced the maximum power transfer theorem in 1940. Therefore, this theorem is also known as Jacobi's law.