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- Gaya magnet
i = 800 mA = 0,8 A
F = 24 N
B = 12 T
α = 90° → sin α = 1
L = __ ?
Gaya Lorentz oleh kawat berarus listrik di dalam medan magnet
F = B i L sin 90°
24 = 12 · 0,8 · L · 1
2 = 0,8 · L · 1
L = 2 · ¹⁰/₈ = 2,5 m ← jawaban