Two Kinds of Electric Charge A Frenchman, DuFay, while carrying further the experiments of Gray, was watching a bit of gold-leaf floating in the air.
Volta showed that an electric charge can be produced merely by bringing two different metals into contact.
Ordinary atoms could be made to carry an electric charge and by comparing their behavior with those of electrons, some of the properties of electrons could be determined.
This meant that, unlike either light or ordinary atoms, the cathode rays carried an electric charge.
A helium nucleus might have a mass number of 4 but it had an electric charge of +2.
The helium nucleus would then have a mass number of 4 and an electric charge (atomic number) of 4 - 2, or 2.
If it were made up of 4 protons, it ought to have an electric charge of +4.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "electric charge" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.