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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A photographic flash unit consists of a xenon – filled tube . It is given a flash of average power 2000 W for 0.04 s. THe flash is due to discharge of a fully charged capacitror of 40 muF . The voltage to which it is charged before a flash is given by the unit is

A photographic flash unit consists of a xenon – filled tube . It is given a flash of average power 2000 W for 0.04 s. THe flash is due to discharge of a fully charged capacitror of 40 muF . The voltage to which it is charged before a flash is given by the unit is

A capacitor is charged to store an energy U. The charging battery is disconnected . An identrical capacitor is now connected to the first capacitor in parallel . THe energy in each capacitor is now