Questions
AIfa particles (m= 6.7x10-27 kg and q = 2e) arc accelerated from rest through a potential difference of 6 . 7 kV. Then they enter a magnetic field B = 0 .2 T perpendicular to their direction of motion. The radius of the path described by them is
detailed solution
Correct option is B
12mv2=qV or v=2qVm1/2r=mVqB=mqB2qVm=1B2Vmq=10⋅22×6⋅7×103×6⋅7×10−271/22×1⋅6×10−19=8⋅375cmTalk 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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