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Grade 12IIT JEE Entrance Exam

An alpha particle is moving along a circle of radius r and with constant angular velocity v .Point A lies in the same plane at a distance 2r from center. Point A records magnetic field produced by alpha particle . If the minimum time interval between two succuessive times at which A records Zero magnetic field is t. the angular speed in terms of t?

Profile image of adffhkkl
10 Years agoGrade 12
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1 Answer

Profile image of Kartikey Maheshwari
9 Years ago
W=omega∆=angle in radian As b=0 so DL*r must be 0 by boot savart law so ∆= 0 or pieTangent to circle of radius r from 2r,0 centered at origin Will be of slope +-0.5 so it subteds a total angleangle ∆( 2pie /3)At origin so W=∆/tW=2pie /3t

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