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 lt b is

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

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 xgtb is

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 xgtb is

A particle of mass m and charge q moves with a constant velocity V along the positive x-direction . It enters a regio 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 of x gt b is