What is the Norton current In in terms of Thevenin parameters?

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Multiple Choice

What is the Norton current In in terms of Thevenin parameters?

Explanation:
The Norton current is the short-circuit current that would flow from the source into a direct short across the output terminals. For a Thevenin model with a voltage Voc in series with Rth, shorting the load makes the current through that path equal to Voc divided by Rth (Ohm’s law: I = V/R). This short-circuit current is the Norton current, and it holds that RN = Rth as well. Therefore, the Norton current is In = Voc / Rth. This is why the correct expression is the ratio, not a product, difference, or sum.

The Norton current is the short-circuit current that would flow from the source into a direct short across the output terminals. For a Thevenin model with a voltage Voc in series with Rth, shorting the load makes the current through that path equal to Voc divided by Rth (Ohm’s law: I = V/R). This short-circuit current is the Norton current, and it holds that RN = Rth as well. Therefore, the Norton current is In = Voc / Rth. This is why the correct expression is the ratio, not a product, difference, or sum.

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