Description
and dishwasher cycles
Concave glass mirror at 75mm diameter and 150mm focal length on a ~3mm-thick blank
for side-by-side period-versus-mass comparisons across three materials
sized for two-cell battery-pack circuits and the standard ray-box and panel-lamp apparatus
Demonstration Electroscope Capacity_50mL and dishwasher cyclesLarge 150mm ring with charging ball and condenser plates on an insulated rod, sized so the leaf deflection stays visible from the back of the room during whole class electrostatics demos.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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