A proton of mass M and kinetic energy K passes undeflected through a region with…

PHYSICS · Single correct · AP · Physics 2: Algebra-based · Magnetism and Electromagnetism · Magnetism and Electromagnetism

Problem

5. A proton of mass M and kinetic energy K passes undeflected through a region with electric and magnetic fields perpendicular to each other. The electric field has magnitude E . The magnitude of the magnetic field B is (A) ME2K\sqrt{\frac{M E^{2}}{K}} (B) ME2K\sqrt{\frac{M E}{2 K}} (C) 2ME2K\sqrt{\frac{2 M E^{2}}{K}} (D) ME22K\sqrt{\frac{M E^{2}}{2 K}}

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