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What is 1 + 3?
atoms and emf
basic unit of matter, made of protons, neutrons, and electrons
who discovered electrons and when?
jj thomson, 1898
in what lab were electrons discovered
what does emf stand for?
where are electrons?
how do electrons travel?
in straight lines
when was the crooke's tube invented?
what is the crooke's tube used for?
it was where cathode rays were discovered
voltage produced by electric battery or generator, energy supplied by source of electric power
what causes emf?
excess of electrons at one point and deficiency of electrons at another. the difference at electric potential energy
what makes tvs bright?