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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > An electron moves through a uniform magnetic field given by B = B xi ^ +(3B x ​ ) j ^ ​ .At a particular instant,the electron has the velocity v =(2.0 i ^ +4.0 j ^ ​ )m/s and the magnetic force acting on it is (6.4×10 −19 N) k ^ .Find x such that x=−B x .

An electron moves through a uniform magnetic field given by B = B xi ^ +(3B x ​ ) j ^ ​ .At a particular instant,the electron has the velocity v =(2.0 i ^ +4.0 j ^ ​ )m/s and the magnetic force acting on it is (6.4×10 −19 N) k ^ .Find x such that x=−B x .

An electron moves through a uniform magnetic field given by B = B xi ^ +(3B x ​ ) j ^ ​ .At a particular instant the electron has the velocity v =(2.0 i ^ +4.0 j ^ ​ )m/s and the magnetic force acting on it is (6.4×10 −19 N) k ^ .Find x such that x=−B x .