A) \[\frac{5\sqrt{5}}{4\sqrt{2}}\]
B) \[\frac{5}{2}\]
C) \[\frac{5}{4}\]
D) \[\frac{5\sqrt{5}}{2\sqrt{2}}\]
Correct Answer: A
Solution :
[a] \[{{E}_{1}}=\frac{nkQR}{{{\left( {{R}^{2}}+{{R}^{2}} \right)}^{3/2}}},{{E}_{1}}=\frac{nkQ\left( 2R \right)}{{{\left( {{R}^{2}}+{{\left( 2R \right)}^{2}} \right)}^{3/2}}}\] \[\therefore \frac{{{E}_{1}}}{{{E}_{2}}}=\frac{5\sqrt{5}}{4\sqrt{2}}\]You need to login to perform this action.
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