US$ 31.00
sized as bulb-spares for three-cell battery packs and ray-box optics work in physics labs
generating repeated sparks to illustrate charge separation by induction
Built for identification exercises
and ray-tracing demos
Carbon anode-and-cathode pair pre-fitted in a rubber bung
750mm Connecting Lead with Crocodile Clips Both Ends, Red, 4mm Plug Prong_4 sized as bulb-spares for three-cellMid length 750mm red insulated lead with crocodile clips at both ends, paired with the 750mm black lead to keep wiring color coded across mid distance bench setups.
US$ 31.00
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