A) \[2\times {{10}^{-2}}\,J\]
B) \[2.5\times {{10}^{-2}}\,J\]
C) \[3.5\times {{10}^{-2}}\,J\]
D) \[4\times {{10}^{-2}}\,J\]
Correct Answer: D
Solution :
\[\Delta U={{U}_{2}}-{{U}_{1}}=\frac{{{V}^{2}}}{2}({{C}_{2}}-{{C}_{1}})\] \[=\frac{{{(100)}^{2}}}{2}(10-2)\times {{10}^{-6}}=4\times {{10}^{-2}}J\]You need to login to perform this action.
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