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 of magnitude 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

A particle of mass m and charge q moves with a constant velocity

1.	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 of magnitude 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» 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 of magnitude 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

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