An electron is moving on a circular path of radius r with speed v in a – McqOptions

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1.	An electron is moving on a circular path of radius r with speed v in a transverse magnetic field B. e/m for it will be [MP PMT 2003]
A.	\[\frac{v}{Br}\]
B.	\[\frac{B}{rv}\]
C.	Bvr
D.	\[\frac{vr}{B}\]
Answer» B. \[\frac{B}{rv}\]

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