A particle of mass m and charge q moves with a constant velocity v along the positive x…
Physics · JEE Advanced · NTA Exams — Magnetic Effects of Current and Magnetism
A particle of mass m and charge q moves with a constant velocity v along the positive x direction. It enters a region containing a uniform magnetic field B directed along the negative z direction, extending from x = a to x = b. The minimum value of v required so that the particle can just enter the region x > b is
Answer
(B)
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