The RC charging circuit in a camera flash unit has a voltage source of 295 V and a capacitance of 141 µF. HINT (a) Find its resistance R (in ohms) if the capacitor charges to 90.0% of its final value in 15.2 s. Ω (b) Find the average current (in A) delivered to the flash bulb if the capacitor discharges 90.0% of its full charge in 1.04 ms. A

The RC charging circuit in a camera flash unit has a voltage source of 295 V and a capacitance of 141 µF. HINT (a) Find its resistance R (in ohms) if the capacitor charges to 90.0% of its final value in 15.2 s. Ω (b) Find the average current (in A) delivered to the flash bulb if the capacitor discharges 90.0% of its full charge in 1.04 ms. A

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter29: Direct Current (dc) Circuits

Section: Chapter Questions

Problem 19PQ

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