28. Magnetic Fields and Forces
Force and Torque on Current Loops
11:18 minutes
Problem 27.40
Textbook Question
Textbook Question(I) How much work is required to rotate the current loop (Fig. 27–23) in a uniform magnetic field B (→ above B) from (a) θ = 0° (μ (→ above μ) ∣∣ B (→ above B)) to θ = 180°
, (b) θ = 90° to θ = ― 90°
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