calculte the force of the magnetic field over the red dot Calcula la fuerza que se ejerce en el polo de prueba de los siguientes problemas. PROBLEMA 20 11 10 A 12-7 A BR 14 Am 13-5 9 cm 4 cm 3 cm 7 cm PROBLEMA 21 solve question no. 21 IBA pp 9 Am PROBLEMA 22 In9A 11-9A 12- 11 A 14 cm 12 cm 13- 13 A BR 7A 6 cm 5 cm 11 cm
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