Optical Experimental Equipment Small Optical Bench Magnetic Field Demonstrator Physics Electricity Experiment Equipment Teaching Instrument

The toroidal current magnetic field is demonstrated with a toroidal coil.Put the small magnetic needles at different positions of the magnetic field, you can observe the direction and poles of the circular current magnetic field.When changing the direction of the current, the magnetic needle points in the opposite direction, and the direction of the magnetic field and the direction of the current follow the right-hand spiral rule.The solenoid magnetic field is demonstrated with a solenoid coil.The external circuit remains unchanged, and the small magnetic needles are placed in various positions to check the direction of the magnetic field and change the currentSize: length 250*total width 182mm*total height 78mmWeight: Approximately 250 g in one setPurpose: To demonstrate the phenomenon of direct current passing through a wire to generate a magnetic field around it, and the relationship between the direction of the magnetic field and the direction of the current.combo:1 current magnetic field demonstrator4*small magnetic needle2*wire1*iron powderPrecautions1. This instrument is made of transparent materials, so friction should be avoided to maintain its transparency.2. During the demonstration, the power supply should be cut off after the magnetic induction line is formed to avoid excessive temperature and damage to the instrument.

• Purpose: Demonstrate the phenomenon that direct current passes through the wire to generate a magnetic field around it, and the relationship between the direction of the magnetic field and the direction of the current.
• Structure: The current magnetic field demonstrator is composed of three pieces of linear current magnetic field, circular current magnetic field, and solenoid magnetic field demonstrator, all of which use multi-turn coils instead of single-stranded wires to increase the magnetic induction intensity and enhance the demonstration effect.
• This instrument is made of transparent materials. Avoid friction and maintain its transparency.
• During the demonstration, after the magnetic induction line is formed, the power supply should be cut off to avoid excessive temperature and damage to the instrument.
• After the experiment, the iron powder should be cleaned with a brush.