Electroscope, Positive / Negative.
Now you can determine the net charge on your statically charged objects. Works with charged rods and electroscopes for determining the final charge type after experimentation. Uses two LED's to indicate positive or negative charge.
Requires a 9v Battery.More info
Now you can determine the net charge on your statically charged objects. Works with charged rods and electroscopes for determining the final charge type after experimentation. Uses two LED's to indicate positive or negative charge.
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