Q 10 I dont think the magnitude of v is realitive in this situation so I would s

Question

Q 10 I dont think the magnitude of v is realitive in this situation so I would say it travel N and S aswell?

A region of space has a uniform electric field E rightarrow directed down and a uniform magnetic field B rightarrow directed east. Gravity is negligible. An electron is moving with a constant velocity V1 rightarrow through the two fields. In which direction could the electron be moving? (There may be more than one correct answer. ) North South Up Down A second electron originally follows the direction of the first, but is moving at a slightly slower speed v2

Explanation / Answer

9) For this question your logic is correct. That is Since the v and B are always in the same plane and v perp would be in the N or S direction

10) Since v2 is less than v1 , this is possible only when the electric field vector decreases or magnetic field vector increases So it follows a semi circlular path in   N to S direction

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