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10.5 Exercise 5

Avg difficulty 2.5

The duration of a photographic flash is related to an RC time constant, which is 0.100μs0.100 \mu \text{s} for a certain camera. (a) If the resistance of the flash lamp is 0.0400Ω0.0400 \Omega 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 800kΩ800 \text{k} \Omega?

OpenStax University Physics Volume 2, 10.5 RC Circuits, exercise 5

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Adapted from University Physics Volume 2 © 2016 Rice University. Licensed under CC BY 4.0. Source: University Physics Volume 2. Imported at revision db44eb9.