1. Electrical conductivity. Electric current is the flow of electrons in a wire. In metals, the outer electrons of the atoms belong to a cloud of delocalised electrons. They are no longer firmly held by a specific atom, but instead they can move freely through the lattice of positive metal ions. Normally they move randomly.
the BET and the BPT determined to be due by the due date of the tax. Do not file an extension if no tax is due. If you need to make an additional payment in order to have paid 100% of the taxes determined to be due, then you may file your payment online at
Due dates. 1  Monthly returns are due the 25th of every month. (e.g. The June tax return is due July 25.) 2  Quarterly returns are due the end of the month following the tax quarter. (e.g. 3  Annual returns are due January 31. (e.g. The Annual 2013 tax return is due January 31, 2014)