Electricity

Electricity was known in Antiquity, and associated with amber. During modernity, it came to be appreciated not only in its static form, but in its dynamic aspects. The English scientific advisor to Elizabeth 1, Gilbert, argued that the earth itselt was electrified. Du Fay noticided that there were two forms, amber and glass electrification, each repellent to self but attractive to the other form. And so on...until Benjamin Franklin, in the XIXth century, stated there was but one form but with negative and positive elements.

Today, atomic theory is well-established, even a bit anachronistic. The LHD is looking for particles that existed shortly after the Big Bang, the elusive particle that gives mass to elementary particles.

Electricity itself is a well-harnessed force that brings comfort and convenience to everyday life. The basic concept used to describe it is voltage, the difference in charge between each 'end' of an electrical circuit. Resistance is a factor, measured in ohms, while current intensity is measured in amperes, which are coulombs per second. There are 6,24 x 10^18 electrons in a coulomb. Thus, U = RxI.

If the resistors follow each other in a serial fashion, one ads the value of each to find the total resistance of the circuit. Amperage remains the same throughout, but voltage will decompose at each resistor. If resistors are distributed in a parallel fashion, it is as if there were many concurent circuits. Resistance equivalence is the sum of the individual resistors, that sum itself inverted. In effect, amperage will be different at each resistor, and the sum of the amperages will match the formula amperage equivalent.

For voltage=15 volts and two resistors, 2, and 3 ohms respectively: