Two-way key

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100 In Stock

₹146.0

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🔍 Two-Way Key

A Two-Way Key is an essential electrical switch used in physics laboratories to select between two different circuits or components—such as connecting or disconnecting a galvanometer or resistance. It allows smooth switching between two paths in a circuit without re-wiring.

🧪 Key Features:

  • Type: Manual double-throw switch

  • Material: Brass contacts on a wooden or bakelite base

  • Design: Three brass terminals—one common (input) and two outputs (A and B)

  • Operation: Insert metal plug into either slot to complete the desired circuit path

  • Durability: High-conductivity brass and rigid insulating base for lab safety

📚 Applications:

  • Used in Wheatstone bridge, Potentiometer, and resistance comparison experiments

  • Helps switch current between two alternative branches without disconnection

  • Standard tool in CBSE/ICSE/State board, B.Sc., and engineering practicals

  • Commonly used with galvanometers, resistance boxes, and battery eliminators

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