How the radius of a charge's circular path changes with its speed, energy or the field

1. A.
   $\frac{R}{\sqrt{2}}$
2. B.
   $2R$
3. C.
   $\frac{R}{2}$
4. D.
   $\sqrt{2}R$

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1. A.
   $\frac{R}{2}$
2. B.
   $\frac{R}{4}$
3. C.
   $2R$
4. D.
   $4R$

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1. A.
   $\frac{R}{3}$
2. B.
   $\frac{R}{\sqrt{3}}$
3. C.
   $\sqrt{3} \cdot R$
4. D.
   $3 \cdot R$

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1. A.
   4R
2. B.
   2R
3. C.
   $\frac{R}{2}$
4. D.
   $\frac{R}{4}$

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1. A.
   $R$
2. B.
   $3R$
3. C.
   $\sqrt{3}R$
4. D.
   $R/3$

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