Plug Key is a high-quality electrical device used to control circuits in physics labs and classroom experiments. It features a sturdy ½-inch brass block and plug that provide excellent conductivity for smooth current flow.
Mounted securely on an insulated bakelite or plastic base, it ensures safety during every experiment. Thanks to its strong build, this plug key lasts long and performs reliably under frequent use.
Teachers and students can easily use it to open or close circuits while studying basic electrical principles. Moreover, its simple manual design makes learning about electricity clear and hands-on.
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Type: One-Way Plug Key
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Material: Solid ½” brass block and plug
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Base: Insulated bakelite or plastic
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Function: Manual open/close circuit control
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Applications: Physics labs, school experiments, classroom demonstrations
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