Radius of the circular path of a charge accelerated through a potential difference

1. A.
   $\frac{r^2 q B^2}{2V}$
2. B.
   $\frac{r^2 q^2 B^2}{2V}$
3. C.
   $\frac{qrB}{2V}$
4. D.
   $\frac{q^2 r^2 B^2}{v}$

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1. A.
   $\sqrt{\frac{2eV}{m}}$
2. B.
   $\sqrt{\frac{2Vm}{eB^2}}$
3. C.
   $\sqrt{\frac{2Vm}{eB}}$
4. D.
   $\sqrt{\frac{2Vm}{e^2B}}$

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1. A.
   $q^2r^2B^2/2V$
2. B.
   $qr^2B^2/2V$
3. C.
   $qBr/V$
4. D.
   $q^2r^2B/2V$

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1. A.
   $\left(\dfrac{m_1}{m_2}\right)^2$
2. B.
   $\dfrac{m_1}{m_2}$
3. C.
   $\sqrt{\dfrac{m_1}{m_2}}$
4. D.
   $\sqrt{\dfrac{m_2}{m_1}}$

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