: Use a small piece of tape to keep the coils from unraveling. 3. Strip the Wire Ends
Place your compass on a flat, non-metallic surface. Ensure it is away from any external magnets or electronic devices that might interfere with its reading. Allow the needle to settle so it points toward the Earth's magnetic North. how to make a galvanometer
Take a circular object roughly 5–8 cm in diameter (e.g., a small jar lid or spool). Wind of insulated copper wire neatly around it. Leave about 10 cm of free wire at both ends. : Use a small piece of tape to
To construct a working galvanometer that visibly responds to small electric currents by deflecting a needle. how to make a galvanometer