# A trip through magnetic fields

Electricity and Magnetism Level 3

A positively charged particle, which was initially moving in the $$+y$$ direction on the $$xy$$-plane, passes through points P, Q and R, as shown above. The magnetic field intensities of area I and area II are $$2B$$ and $$B,$$ respectively, and P and Q have the same distance from the origin O. If it takes $$T_0$$ for the charged particle to move from P to Q, how long will it take for it to move from Q to R?

×

Problem Loading...

Note Loading...

Set Loading...