This machine is used in electrostatic experiments to obtain a large amount of electric charge , and cooperate with other instruments to carry out experiments such as the charge distribution of related conductors, the power line of the electrostatic field, the tip discharge and the discharge of the vacuum tube. It can also do a series of experiments, such as electrostatic induction, spark discharge, tip discharge and capacitance change of capacitors. The conductive layer in the conductive plate of this machine is coated with conductive material, the coating is firm,. It overcomes the shortcomings of the original aluminum foil that is easy to fall off, and can improve the electrification performance. It can be used in humid climates and rainy days. Power up. For understanding the motor, it is more intuitive to observe in the darkroom. In the darkroom, the neutralizing brush and collector rod can be clearly seen from the fire bouquet, and the discharge phenomenon can be clearly seen on the tip of the collector rod. After use, the two discharge balls can be contacted to neutralize the positive and negative charges, but please