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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A capacitor of capacitance C is charged to a potential difference V from a cell and then disconncted from it. A charge +Q is now given to its positive plate. Find The potential difference across the capacitor is now

A capacitor of capacitance C is charged to a potential difference V from a cell and then disconncted from it. A charge +Q is now given to its positive plate. Find The potential difference across the capacitor is now

A charge Q is uniformly distributed over a long rod AB of elngth L as shown in the figure. The electric potential at the point O lying at a distance L from the end A is