Magnetic Earth Field Model, Use it as is or place it on an overhead projector to show the whole class, Iron filings are suspended in oil to allow the included magnet to align them to its field
Solar Cell with wires, 12.0V, 45mA, High efficiency small, can easily be connected together for larger load applications including higher voltage and current loads. Compact size with rugged, attractive casing. Perfect for charging 9V NiMH rechargeable batteries.
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