NEET Sample Paper NEET Sample Test Paper-50

  • question_answer 38) If an electron is going in the direction of magnetic field \[\overrightarrow{B}\] with the velocity of \[\overrightarrow{v}\] then the force on electron is-

    A) Zero                             

    B) \[e\left( \overrightarrow{v}\,.\,\overrightarrow{B} \right)\]

    C) \[e\left( \overrightarrow{v}\,\,\times \,\,\overrightarrow{B} \right)\]                

    D) None of these

    Correct Answer: A

    Solution :

    \[\theta =0\] \[\sin \,\,\theta =0\] \[F\,\,=\,\,eVB\text{ }sin\text{ }\theta \,\,=\,\,0\]

adversite



LIMITED OFFER HURRY UP! OFFER AVAILABLE ON ALL MATERIAL TILL TODAY ONLY!

You need to login to perform this action.
You will be redirected in 3 sec spinner

Free
Videos