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Two particles have equal masses m and electric charges of equal magnitude and opposite sign (+q...

Two particles have equal masses m and electric charges of equal magnitude and opposite sign (+q and –q). The particles are held at rest in uniform magnetic field with a magnitude of B. The direction of the field is perpendicular to the line connecting the charges. The particles are released simultaneously. What is the minimum initial separation L so that the particles do not collide after they are released? Neglect the magnetic fields produced by the particles themselves and the effects of gravity.

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