Induksi elektromagnetik (Faraday, Lenz)Cukup sering
Latihan 10 soal
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Smooth horizontal parallel rails are joined by a resistor R=3Ω in a vertical uniform magnetic field. A rod of mass 0.2kg and resistance r=1Ω lies across the rails and is given an initial horizontal speed of 4m/s; it then slows down under the Ampère force, its speed gradually approaching zero. The rails have negligible resistance. The total Joule heat eventually produced in R is ( ).
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