AB and AC are the boundary lines within which a magnetic field B exists.
If the magnetic field is absent, a charged particle of mass m and charge q must have passed through a point P on angle bisector of —BAC, at a distance r $\sqrt{2}$ from A, if it has fallen on AB normally at a point Q such that OP = r. If the magnetic field is present, how much time the charged particle will take to come out of the magnetic field

Question

AB and AC are the boundary lines within which a magnetic field B exists.

If the magnetic field is absent, a charged particle of mass m and charge q must have passed through a point P on angle bisector of —BAC, at a distance r $\sqrt{2}$ from A, if it has fallen on AB normally at a point Q such that OP = r. If the magnetic field is present, how much time the charged particle will take to come out of the magnetic field

Infinity Learn · Accepted Answer

Since, $$QP=r$$,$$AP=r2$$ and ∠$$AQP=90$$° $$AQ=r$$ and ∠$$QAP=45$$°  The same logic concludes $$AR=r$$ and ∠$$PAR=45$$°  So, ∠$$QAR=90$$° $$r=mvBq$$  Distance travelled $$=$$π$$r2$$  Time $$=$$π$$2$$·mvBq·$$1v=m$$$$π$$$$2Bq$$

Remember concepts with our Masterclasses.

Ready to Test Your Skills?

free study material