The duration of a photographic flash is related to an RC time constant, which is 0.100 s
Chapter 21, Problem 65(choose chapter or problem)
The duration of a photographic flash is related to an RC time constant, which is 0.100 s for a certain camera. (a) If the resistance of the flash lamp is 0.0400 during discharge, what is the size of the capacitor supplying its energy? (b) What is the time constant for charging the capacitor, if the charging resistance is 800 k?
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