For the circuit shown, calculate re, input impedance Zi, output impedance Zo and voltage gain A, assuming ro = ∞0. V₁0- 10 μF Zi H 22 V '56 ΚΩ 8.2 ΚΩ 1.5 ΚΩ lo 6.8 ΚΩ 10 µF HE B = 90 HA o Vo Zo 20 µF

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Latches and Flip Flop

Just like logic gates, the latches and flip-flops are the important elements of an electronic circuit. The logic gates form the important part of combinatorial circuits, while the latches and flip-flops form the essential part of a sequential circuit. Sequential circuits form the important concept of automata theory in electronics and electrical engineering, these circuits are a kind of logic circuit whose output depends on both present input and past inputs, that is, the input history.