The duration of a photographic flash is related to an RC time constant, which is 0.180 us for a certain camera. (a) If the resistance of the flash lamp is 0.0340 2 during discharge, what is the size (in uF) of the capacitor supplying its energy? F (b) What is the time constant (in s) for charging the capacitor, if the charging resistance is 650 kN? S

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