A positively charge moving along the positive x-direction with a speed traces a non-linear trajectory OA in the x-y plane after passing O as shown in the figure. The combination of electric (vecE) and magnetic field (vecB) fields that would lead to the trajectory OA is (a, b, c are non-zero positive constants),

A positively charge moving along the positive x-direction with a speed

1.	A positively charge moving along the positive x-direction with a speed traces a non-linear trajectory OA in the x-y plane after passing O as shown in the figure. The combination of electric (vecE) and magnetic field (vecB) fields that would lead to the trajectory OA is (a, b, c are non-zero positive constants),
Answer» `vecE=0 , vecB=ahatj+chatk` `vecE=ahati, vecB=bhatj+chatk` `vecE=0 , vecB=bhatj+chatk` `vecE=ahati, vecB=bhati-chatk` ANSWER :D

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