An electron with charge -e and mass m travels at a speed v in a plane
perpendicular to a magnetic field of magnitude B. The electron follows a
circular path of radius R. In a time, t, the electron travels halfway around the
circle. What is the amount of work done by the magnetic field?
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29. A particle of charge q and mass moving with a velocity v long the X-axis enters the region X) 0 with uniform magnetic field along B theck direction.
the participles will penetrate in this region in the X-direction upto a distance d equal to
1) zero
2)B2M2
3)GB
4) infinity
20 degree Celsius pqr is bent to form.
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