More cards in this set

What is the colour of the earth wire?

why does a mains appliance with a plastic case not need to be earthed?

what does a fuse do?

What is an electric current?

what may cause an electric fault?

what is special about the nuclei of a radioactive substance?

what are the three types of radiation?

What happened in the "alpha particle scattering experiment"

what is the relative mass of a proton?

what is an isotope?