A 6.5x10^-5 C charge is moving perpendicular to a magnetic field with a velocity of 15 m/s. If the magnetic force is 6 N, what is the magnitude of the magnetic field?
2. Corrected_text: A charge has a value of 8.4x10^-6 C. A) Find the magnitude (value) of the electric field it produces, 0.004 m away from it. B) A new charge, 3x10^-8 C, enters the field. What is the magnitude of the force it experiences from the field?