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An electron is moving in a circular path under the influence of a transverse magnetic field of T. If the value of is , the frequency of revolution of the electron is
detailed solution
Correct option is A
Here,B=3.57×10-2 T,em=1.76×1011Ckg-1Frequency of revolution of the electron, v=1T=v2πr……..(1) Also, mv2r=evB⇒vr=eBm……….(2)From eqns. (i) and (ii)v=12π×eBm=12×3.14×1.76×1011×3.57×10-2=109 Hz=1GHzTalk 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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