How the input impedance of a common base transistor amplifier expresse – McqOptions

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1.	How the input impedance of a common base transistor amplifier expressed in terms of transistor hybrid parameters?
A.	-h<sub>ib</sub> + (h<sub>fb</sub> h<sub>ib</sub> / Y<sub>L</sub> + h<sub>ob</sub>)
B.	h<sub>ib</sub> (h<sub>fb</sub> h<sub>ib</sub> / Y<sub>L</sub> + h<sub>ob</sub>)
C.	-h<sub>ib</sub> + (h<sub>fb</sub> h<sub>rb</sub> / Y<sub>L</sub> + h<sub>ob</sub>)
D.	h<sub>ib</sub> (h<sub>fb</sub> h<sub>rb</sub> / Y<sub>L</sub> + h<sub>ob</sub>)
Answer» E.

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