1. The small-signal model is said to be valid for voltage variations of about 10 mV. To what percent

1. The small-signal model is said
to be valid for voltage variations of about 10 mV. To what percent current
change does this correspond for:

i. n = 1

ii. n = 2

2. What is the incremental resistance of
ten 1 mA diodes connected in parallel and fed with a dc current 10 mA. Let n = 2.

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