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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A capacitor of capacitance 10mF is charged up a potential difference of 2V and then the cell is removed. Now it is connected to a cell of emf4V and is charged fully. In both cases the polarities of the two cells are in the same directions. Total heat produced in the second charging process is :

A capacitor of capacitance 10mF is charged up a potential difference of 2V and then the cell is removed. Now it is connected to a cell of emf4V and is charged fully. In both cases the polarities of the two cells are in the same directions. Total heat produced in the second charging process is :

Figure shows three similar lamps L1 how will the light emitted by L1 and L2 change ? L2 and L3 Connected across a power supply. If the lamp L3 fuses