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You know, if a charge q is moving with v...

You know, if a charge q is moving with velocity v enters a uniform magntic field B, it experiences a force `F=q(vxxB)`. Name the paths described by q when the angle between v and B is (1) `angletheta=90^(@)` and (2) `angletheta=angle90^(@)`.

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Circle (2) Helix
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