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Three point charges `1C, 2C` and `3C` are placed at the corners of an equilaternal triangle of side `1m`. The work required to move these charges to the corners of a smaller equilaternal triangle of side `0.5 m` in two differenct ways as in fig. `(A)` and fig. `(B)` are `W_(a)` and `W_(b)` then: A. `W_(w) gt W_(b)`B. `W_(a) lt W_(b)`C. `W_(a)=W_(b)`D. `W_(a)=0` and `W_(b)=0` |
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Answer» Correct Answer - C Work done by external force `=DeltaU` [It is state function] |
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