### Understanding Capacitor Safety: A Practical Scenario**Key Concept: Capacitor Discharge**Large capacitors can retain a potentially dangerous charge even after a circuit has been turned off. It is crucial to discharge them safely before handling. #### Example ScenarioImagine a 120 μF capacitor from a camera flash unit retains a voltage of 190 V. An unwary student might accidentally remove it from the camera while it's still charged.**Safety Consideration:**- **Potential Hazard:** If the student accidentally contacts both terminals with their hands, the discharged current can pass through their body.- **Body Resistance:** Typically, the resistance through the human body is about 1.8 kΩ.#### Problem Statement- **Objective:** Determine the duration for which the current exceeds the danger level of 50 mA across the chest.- **Given:** - Capacitance (C): 120 μF - Initial Voltage (V): 190 V - Body Resistance (R): 1.8 kΩ - Safe Current Level: 50 mA **Calculate Time (t):** Use appropriate units and express your answer in the provided input fields for value and units.This exercise demonstrates the importance of understanding electrical components in practical settings, particularly when safety is a concern.**Interactive Component:** Enter your calculations in the fields and submit to verify your understanding. Request hints if needed.

Answered: Image /qna-images/answer/40db18d6-b137-449f-a073-3429f0187b99.jpg

Large capacitors can hold a potentially dangerous charge long after a circuit has been turned off, so it is important to make sure they are discharged before you touch them. Suppose a 120 μF capacitor from a camera flash unit retains a voltage of 190 V when an unwary student removes it from the camera. ▼ Part A If the student accidentally touches the two terminals with his hands, and if the resistance of his body between his hands is 1.8 ks, for how long will the current across his chest exceed the danger level of 50 mA? Express your answer with the appropriate units. t = μÃ Value Units ?

Large capacitors can hold a potentially dangerous charge long after a circuit has been turned off, so it is important to make sure they are discharged before you touch them. Suppose a 120 μF capacitor from a camera flash unit retains a voltage of 190 V when an unwary student removes it from the camera. ▼ Part A If the student accidentally touches the two terminals with his hands, and if the resistance of his body between his hands is 1.8 ks, for how long will the current across his chest exceed the danger level of 50 mA? Express your answer with the appropriate units. t = μÃ Value Units ?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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