Electric Paint Pen,used as a liquid wire to draw or print graphical circuits, or even as a conductive adhesive eliminating the need for soldering equipment. also work as a conductive adhesive, providing a safer alternative to using soldering irons, 10ml Pen
A convenient, well-made solenoid for investigating the magnetic field of a coil and for the current balance experiment. The clear acrylic former and the large diameter (90mm) allow items placed inside the coil to be easily seen