Question

The duration of a photographic flash is related to an RC time constant, which is 0.120 ?s for a certain camera. (a) If the resistance of the flash lamp is 0.0360 ? during discharge, what is the size (in ?F) of the capacitor supplying its energy? ?F (b) What is the time constant (in s) for charging the capacitor, if the charging resistance is 900 k?? s

          The duration of a photographic flash is related to an RC time constant, which is 0.120 ?s for a certain camera.
(a) If the resistance of the flash lamp is 0.0360 ? during discharge, what is the size (in ?F) of the capacitor supplying its energy?
?F
(b) What is the time constant (in s) for charging the capacitor, if the charging resistance is 900 k??
s

The duration of a photographic flash is related to an RC time constant, which is 0.120 ?s for a certain camera.
(a) If the resistance of the flash lamp is 0.0360 ? during discharge, what is the size (in ?F) of the capacitor supplying its energy?
?F
(b) What is the time constant (in s) for charging the capacitor, if the charging resistance is 900 k??
s

Added by Gail S.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Ivan Kochetkov

04/18/2022

Step 1

Given: RC time constant (τ) = 0.120 s Resistance (R) = 360 Ω Using the formula for the time constant of an RC circuit: τ = R * C 0.120 = 360 * C C = 0.120 / 360 C = 0.000333 F = 333 µF Show more…

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The duration of a photographic flash is related to an RC time constant, which is 0.120 μs for a certain camera. (a) If the resistance of the flash lamp is 0.0360 Ω during discharge, what is the size (in μF) of the capacitor supplying its energy? (b) What is the time constant (in s) for charging the capacitor, if the charging resistance is 900 kΩ?