Electronic induction coil is mainly used for the physical and chemical experiments in middle school. It is an adjustable high voltage power supply. 

With small power and can produce the high voltage of 100KV under rated operating voltage. It can be used as a high-voltage power supply for discharge tubes of low air pressure,

spectrum tubes, cathode ray tubes,roentgen-ray tubes,electric resonance,ect. 

It can also be used for demonstrating the spark discharge in the air and the electric break down in liquid and solid media and prepare zones from the air.