Questions
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
detailed solution
Correct option is B
Here mv=Bqr or mv=Bq(b−a)∴ v=Bq(b−a)mTalk to our academic expert!
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A charged beam consisting of electrons and positrons enter into a region of uniform magnetic field B perpendicular to field, with a speed v. The maximum separation between an electron and a positron will be (mass of electron = mass of positron = m)
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