Questions
A uniform magnetic field is at right angle to the direction of motion of protons. As a result, the protons describe a circular path of radius 2 .5 cm. If the speed of the protons is doubled, then the radius of the circular path will be
detailed solution
Correct option is C
mv2r=evB or r=(mv/eB)When v is doubled, r is also doubled, i.e., 5.0 cm.Talk 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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