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Problem 30146.
An electron, accelerated in a uniform electric field of intensity E=1.6 kV/m, flies into a uniform magnetic field with induction B=30 mT and begins to move in a circle with radius R=2 mm. How far did the electron travel in the electric field? The initial speed of the electron is zero, the mass of the electron is m=9.1*10^-31 kg, the charge e= -1.6*10^-19 C.
Detailed solution with a brief record of the conditions, formulas and laws used in the solution, derivation of the calculation formula and answer.
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