A Fast and Accurate Way of Evaluating the Widlar Current Using the Newton-Raphson Method

Autor/in	Mohamed, Ahmed Obaid
Titel	A Fast and Accurate Way of Evaluating the Widlar Current Using the Newton-Raphson Method
Quelle	In: Physics Education, 57 (2022) 3, Artikel 035005 (7 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Zusatzinformation	ORCID (Mohamed, Ahmed Obaid)
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0031-9120
Schlagwörter	Science Instruction; Physics; College Science; Undergraduate Study; Energy; Problem Solving; Electronic Equipment; Equations (Mathematics) + Suchen Sie Ihr Suchwort? Teaching of science; Science education; Natural sciences Lessons; Naturwissenschaftlicher Unterricht; Physik; Grundstudium; Energie; Problemlösen; Elektronisches Gerät; Equations; Mathematics; Gleichungslehre
Abstract	The Widlar current source is one of the basic current sources that undergraduate students encounter throughout their learning process on electronics courses. The Widlar current is actually given in terms of a transcendental equation. Although an analytical solution exists in terms of the Lambert W function it might not be that useful for students during exams or other practical applications. This paper presents a fast and accurate way to solve the problem numerically using the Newton-Raphson method with a regular scientific calculator, and compares the results with the analytical solution given by the Lambert W function. (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2024/1/01