A proton moves with uniform speed 2×10⁸ m/s in mutually perpendicular uniform electric and magnetic fields. If the electric field is switched off, the proton moves in a circular path of radius 1.6×10⁻⁵ m. The magnetic field B is:
Physics · Magnetic effect of current · motion of charge particle in magnetic field
A proton moves with uniform speed 2×10⁸ m/s in mutually perpendicular uniform electric and magnetic fields. If the electric field is switched off, the proton moves in a circular path of radius 1.6×10⁻⁵ m. The magnetic field B is:
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