A semiconductor can act either as a conductor or as an insulator depending on what is done to it. When you heat a semiconductor, such as silicon, more current can pass through it. Small impurities are often added to semiconductors. An n-type semiconductor is made when an impurity is added to increase the number of electrons free for carrying a current. The electricity produced by a Van de Graaff generator is called static electricity because the amounts of positive and negative charge are not perfectly balanced.
Static electricity is created when electrons and protons are separated by a large distance.
It was the first kind of electricity discovered. Static electricity is high voltage electricity with a low current. An electric current is a flow of electric charge. Current electricity has a lower voltage and a higher current than static electricity. In electrostatics, electrical fields are very important as opposed to magnetic fields.