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).
