The Electroscope
Detecting electric charge and observing electron movement
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Electroscope
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B. Detecting Electric Charges.
1. Electroscope - used to detect presence of a charged object.
a) If no charge is present, leaves point straight down.
b) leaves separate in presence of charge.
c) Transfer of charge
1. Charge can be transferred between neutral objects by friction.
Ex) hard rubber rod rubbed with fur or wool causes electrons to be transferred to rod.
Rubber Rod - gains electrons
Becomes Negative
wool or fur
Becomes Positive
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