Use of thermal imaging for understanding simple electrical circuits

In this Frontline article, we describe the application of thermal imaging for helping high school students understand simple direct current (DC) resistive circuits. The circuits comprise a DC power supply (5 V) and four identical incandescent light bulbs in three different arrangements. We demonstra...

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Bibliographic Details
Published in:Physics education 2018-11, Vol.53 (6), p.63002
Main Authors: Wong, Choun Pei, Subramaniam, R
Format: Article
Language:English
Subjects:
Circuits
Direct current
Electric power supplies
Luminaires
Ohmic dissipation
Resistance heating
Students
Thermal imaging
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Summary:In this Frontline article, we describe the application of thermal imaging for helping high school students understand simple direct current (DC) resistive circuits. The circuits comprise a DC power supply (5 V) and four identical incandescent light bulbs in three different arrangements. We demonstrate how thermal imaging can help students learn about Joule heating and rank groups of light bulbs in circuits in the order of power dissipated.
ISSN:0031-9120
1361-6552
DOI:10.1088/1361-6552/aad682