A steel guitar string vibrates (Figure 31.6). The component of magnetic field perpendicular to the area of a pickup coil nearby is given by B = 50.0 mT 2 (3.20 mT) sin (2, 523 t/s)
The circular pickup coil has 30 turns and radius 2.70 mm. Find the emf induced in the coil as a function of time. |
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