Description
a 12V/21W lamp house
Two-ohm wire-wound fixed resistor in an ABS module with 4mm sockets
housed in a vinyl-covered zinc steel case with a fold-out winding handle for field work
tracing hot-air flow between the twin flues
this LDR drops resistance dramatically when light strikes the cell
Gravesande Ring and Ball Apparatus Type_Apron a 12V/21W lamp houseCaptive 19mm brass ball on a rod mounted Gravesande ring, passing freely through the ring at room temperature but halted by the ring after flame heating expands the metal.
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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