The figure shows the circuit of a flashing lamp, like those attached to barrels at highway construction sites. The fluorescent lamp L (of negligible capacitance) is connected in parallel across the capacitor C of an RC circuit. There is a current through the lamp only when the potential difference across it reaches the breakdown voltage V₁; then the capacitor discharges completely through the lamp and the lamp flashes briefly. For a lamp with breakdown voltage V₁ = 63.2 V, wired to a 92.4 Videal battery and a 0.102 mF capacitor, what resistance R is needed for 3 flashes per second?

The figure shows the circuit of a flashing lamp, like those attached to barrels at highway construction sites. The fluorescent lamp L (of negligible capacitance) is connected in parallel across the capacitor C of an RC circuit. There is a current through the lamp only when the potential difference across it reaches the breakdown voltage V₁; then the capacitor discharges completely through the lamp and the lamp flashes briefly. For a lamp with breakdown voltage V₁ = 63.2 V, wired to a 92.4 Videal battery and a 0.102 mF capacitor, what resistance R is needed for 3 flashes per second?

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter21: Circuits And Dc Instruments

Section: Chapter Questions

Problem 71PE: Figure 21.55 shows how a bleeder resistor is used to discharge a capacitor after an electronic...

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