Practicing Success
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. What is the minimum value of v required so that the particle can just enter the region x>b? |
qbB/m q(b-a)B/m qaB/m q(b+a)B/m |
q(b-a)B/m |
Velocity : v = \(\frac{qBr}{m}\) r = b - a
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