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A charge q is accelerated through a potential difference V . It is then passed normally through a uniform magnetic field, where it moves in a circle of radius r. Then potential difference required to move it in a circle of radius 2 r is |
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Answer» 2V `rpropsqrtV` where B is constant or `Vpropr^(2)` `V_(2)/V_(1)=(r_(2)/r_(1))^(2)` `V_(2)/V=((2r)/r)^(2)4rArrV_(2)=4V` |
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