A charged particle having kinetic energy `E` enters normally a region of uniform magnetic
Channel: Doubtnut
Date: 2020-08-30

A charged particle having kinetic energy `E` enters normally a region of uniform magnetic field between two plates `P_(1)` and `P_(2)` as shown in the figure. If the particle just misses hitting the plate `P_(2)`, then the magnetic field `B` in the region between the plates is