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Otázky 21B, 22B a 23C, otázky 28C, 29C, 31 ani jedna správna odpoved a 32D a 33D... asi je to rovnaký princip, len nerozumiem ako dôjsť k správnemu záveru :/
Prosím o pomoc s výpočtom príkladu: Bodové elektrické náboje q1 a q2 sú vo vzduchu vo vzájomnej vzdialenosti a1 = 4cm. Elektrická sila pôsobiaca medzi nábojmi je kompenzovaná vonkajšou silou, takže…
Akou silou je priťahovaný bodový elektrický náboj q = 2 uC (mikrocoulomb) k záporne nabitej nekonečne veľkej rovine ? Plošná hustota elektrického náboja na rovine je -6 uC/m^2. Bodový náboj i…
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