Created by StemPy LabA proton moves towards the east. A uniform magnetic field points straight down. In which direction is the magnetic force on the proton?
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← A positive ion with one unit of charge moves at 2.5 × 10⁵ m/s at right angles to a uniform magnetic field. The force on it is 2.8 × 10⁻¹⁴ N. What is the magnetic field?A charged particle goes round a circle of radius 12 cm in a uniform magnetic field. Then the field is made 3 times stronger and the speed of the particle is halved. What is the radius of the new circle? →
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