Which of the following is true when the charge moves perpendicular to the direction of the uniform magnetic field? The period of its motion is inversely proportional to the square of the magnitude of the uniform magnetic field. O The period of its motion is directly proportional to the square of the magnitude of the uniform magnetic field. The period of its motion is directly proportional to the magnitude of the uniform magnetic field. O The period of its motion is inversely proportional to the magnitude of the uniform magnetic field.
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