Accueil  Sensibilisation Teachers Measuring Planck's Constant
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Measuring Planck's Constant: Introduction |
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Outline
Planck’s constant (h = 6.63 x 10-34 Js) is a universal constant that lies at the heart of quantum physics.
This resource centres around a laboratory activity in which students measure Planck’s constant using a simple electronic circuit. The circuit is inexpensive and contains only a 6-volt battery, an LED, a resistor, a voltmeter, a few wires, and a potentiometer (variable resistor). Curriculum Links
Quantum nature of light, E = hf Grade Level
Senior High School Physics (Grade 12) Student Worksheet
(word, pdf) Teacher's Notes
(pdf) The Physics Behind LEDs
(More detailed information for teachers)
(pdf) Appendix: What is a potentiometer? What is an LED? Measuring Planck's Constant (entire document)
(pdf)
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