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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > In the below fig, an electron of mass m, charge -e, and low (negligible )speed enters the region between two polates of potential difference V and plate seperation d, initially headed directly toward the top plate. A uniform magnectic field of magnitude B is normal to the plane of the fig. find the minimum value of B such that the electron will not strike the top plate.

In the below fig, an electron of mass m, charge -e, and low (negligible )speed enters the region between two polates of potential difference V and plate seperation d, initially headed directly toward the top plate. A uniform magnectic field of magnitude B is normal to the plane of the fig. find the minimum value of B such that the electron will not strike the top plate.

A particle having a charge of 10 μC and mass 1 μg moves in a horizontal circle of radius 10 cm under the influence of a magnetic field of 0.1 T. When the particle is at a point P a uniform electric field is switched on so that the particle starts moving along the tangent with uniform velocity. The electric field is an electron of mass m and low (negligible )speed enters the region between two polates of potential difference V and plate seperation d charge -e In the below fig