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![[Post New]](/templates/default/images/icon_minipost_new.gif) 9 Nov 2007 22:01:39 IST
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see here E is in x direction.so particle will not turn with only E or u can say due to E particle will speed up in x direction not change direction. Now the particle changes direction due to B in z direction. if there were only B then the path wud be circular but u mentioned that the path is not circular so there has to be E therefore the ans is E=ai AND B=ck + aj mark the word AND. Hope this helps
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