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Q & A: photoelectric charging

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Most recent answer: 12/10/2009
Q:
Can't a body be charged by photoelectric effect...
- Prudhvi Raj Borra (age 16)
Machilipatnam,Andhra,India.
A:
Certainly, but not very much. After a body is charged a bit, the potential energy for another electron to leave (increasing the charge) will exceed the photon energy, so the charging will cease.

Mike W.

(published on 12/10/2009)

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