Magnetism14719.8The speed attained by the electron is found from (212mvqV)=∆, or ()1973121.60 10 C 2400V22.9010 m s9.1110kgeVvm−−×∆===××(a) Maximum force occurs when the electron enters the region perpendicular to the field. max19712sin901.6010C2.901.70 T7.9010NFqvB−−=°=××(b) Minimum force occurs when the electron enters the region parallel to the field. minsin00vB=19.9( )( )271321971.6710kg2.010m s0.021 T1.6010C1.0maFBqv−−××== ==The right hand rule shows that BGmust be in the directiony−to yield a force in the +xdirection when is in the +
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