Spec references J249: P8.2h J250: P6.2g. Alternating and direct current. Description and animation.
Nikola Tesla invented alternating current (AC) which allowed no electrical power to be lost when passing throug...
. Ohm's law V = IR with worked example narrated slides.
Benjamin Franklin discovered that electricity could be like money in a bank, it could be in credit (p...
Jim Al-Khalili explains how, as we made microchips smaller, the electrical feature of resistance was becoming more probl...
Invented by Italian chemist Alessandro Volta in 1799, the voltaic pile was the first electrical battery that could con...
An electric current is essentially the flow of electrons (which are electrically charged) from one atom to anot...
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