1. Assume you accidentally put your finger across both leads of the camera capac
ID: 1790118 • Letter: 1
Question
1. Assume you accidentally put your finger across both leads of the camera capacitor when it is fully charged. If your skin has a resistance of 100,000 Ohms, what is the initial current? 2. Would you feel this current? Check out the Electric Shock section on Hyperphysics 3. If you discharge the capacitor with the soldering iron, wire cutters, or some other piece of large metal with low resistance (say, 1 Ohm), what is the initial current? 4. If you discharge the capacitor through a 1000 Ohm resistor, what is the initial current? How long would you need to wait for the capacitor to be "mostly" discharged? 5. Even after the flash has gone off, the capacitor stll has about 50V potential difference. Devise a way to safely discharge the capacitor and prevent accidental charging 6. Research safe practices for working with electricity. List the three most important ideas you find.Explanation / Answer
Solution:
1) When the capacitor is fully charged , current stops flowing through the circuit . So I =0
2)No current is not felt.
3) V=230 V = assumed domestic power supply voltage .
R = 1 ohm , Current = I = V/R = 230 /1 = 230 A
4) Current I = 230/1000 = 0.230 mA
5) It can be safely done by using a multimeter or a discharge tool.
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