JEE Main & Advanced Physics Magnetic Effects of Current / करंट का चुंबकीय प्रभाव Question Bank Graphical Questions

  • question_answer
    A uniform magnetic field B and a uniform electric field E act in a common region. An electron is entering this region of space. The correct arrangement for it to escape undeviated is

    A)                                         

    B)                        

    C)                                    

    D)

    Correct Answer: C

    Solution :

               For undeviated motion\[|\overrightarrow{{{F}_{e}}}|\,=\,|\overrightarrow{{{F}_{m}}}|\], which happened when \[\overrightarrow{v\,},\,\overrightarrow{E}\] and \[\overrightarrow{B}\] are mutually perpendicular to each other.


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