Let Ii be the input current to a transistor and I0 be
Chapter 4, Problem 115(choose chapter or problem)
Let Ii be the input current to a transistor and I0 be theoutput current. Then the current gain is proportional to ln(I0yIi). Suppose the constant of proportionality is 1 (which amounts to choosing a particular unit of measurement),so that current gain 5 X 5 ln(I0/Ii). Assume X isnormally distributed with m 5 1 and s 5 .05.a. What type of distribution does the ratio I0/Ii have?b. What is the probability that the output current ismore than twice the input current?c. What are the expected value and variance of the ratioof output to input current?
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