About This

• This complete electromagnet experiment set is specially applied to electromagnetic principle research, used to explore multiple key factors that affect the magnetic strength of electromagnets.
• It comes with two sets of coils around 200 turns with middle taps and three wiring terminals, which can be freely matched and switched for use on U-shaped iron cores and cylindrical iron cores.
• Supports 1.5V No.1 battery for daily power supply; the matched U-shaped core is fitted with movable armature, and both parts are designed with hooks for convenient tension and adsorption comparison tests.
• Easily assemble complete circuits with switches, battery boxes and connecting wires. Switch different coil access sections to change winding turns, and judge magnetism difference by absorbing metal pins.
• It can be connected in series with ammeter and sliding rheostat under 4.5V DC power supply. Adjust circuit current freely to clearly verify the changing rule between current size and electromagnetic suction force.