Q. The ratio $(R)$ of output resistance $r_0$, and the input resistance $r_1$ in measurements of input and output characteristics of a transistor is typically in the range :

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The ratio $(R)$ of output resistance $r_0$, and the input resistance $r_1$ in measurements of input and output characteristics of a transistor is typically in the range :

Solution:

$R =frac{ r _{0}}{ r _{ i }}$

typical value is approximately $10$