Planck's Constant Apparatus

Product Code: UPLCN01
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Price: $3,795.95
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A precision device for measuring Planck‚Äôs Constant and the work function of electrons in cesium. The apparatus includes five precision plug-in LED modules, a vacuum photocell, an integrated voltmeter and nanoammeter, and control circuitry, all in a compact, lightweight unit. The high quality stabilized LED supply and amplifier yield results for h to better than 5%.