7A10.12 - Photoelectric Charging

Photoelectric charging

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PIRA Classification: 7A10.12

Description: An aluminum plate (work function = 4.1 eV) replaces the usual plate on an electroscope. A UV light shines on the uncharged scope. A positively charged rod is brought near the aluminum plate. The scope will charge positively.

Special Instructions: See 7A10.10

Condition: Good

Setup time: 2 minutes

Safety Issues: Do not shine the light on the students.