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22. As a person moves about in a dry environment, electric charge accumulates on the person's body. Once it is at high voltage, either positive or negative the body can discharge via sparks and shocks. Consider a human body isolated from ground, with the typical capacitance 150 pF. A) What charge on the body will produce a potential of 10.0 kV? B) Sensitive electronic devices can be destroyed by electrostatic discharge from a person. A particular device can be destroyed by a discharge releasing energy of 250 µJ. To what voltage on the body does the situation correspond?

22. As a person moves about in a dry environment, electric charge accumulates on the person's body. Once it is at high voltage, either positive or negative the body can discharge via sparks and shocks. Consider a human body isolated from ground, with the typical capacitance 150 pF. A) What charge on the body will produce a potential of 10.0 kV? B) Sensitive electronic devices can be destroyed by electrostatic discharge from a person. A particular device can be destroyed by a discharge releasing energy of 250 µJ. To what voltage on the body does the situation correspond?

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22. As a person moves about in a dry environment, electric charge accumulates on the person's body. Once it is at high voltage, either positive or negative the body can discharge via sparks and shocks. Consider a human body isolated from ground, with the typical capacitance 150 pF. A) What charge on the body will produce a potential of 10.0 kV? B) Sensitive electronic devices can be destroyed by electrostatic discharge from a person. A particular device can be destroyed by a discharge releasing energy of 250 µJ. To what voltage on the body does the situation correspond?
Transcribed Image Text:22. As a person moves about in a dry environment, electric charge accumulates on the person's body. Once it is at high voltage, either positive or negative the body can discharge via sparks and shocks. Consider a human body isolated from ground, with the typical capacitance 150 pF. A) What charge on the body will produce a potential of 10.0 kV? B) Sensitive electronic devices can be destroyed by electrostatic discharge from a person. A particular device can be destroyed by a discharge releasing energy of 250 µJ. To what voltage on the body does the situation correspond?
Expert Solution
Step 1: Know the concept:

The charge stored in a capacitor is given by the equation,

Q equals C V                                      (1)

where Q is the total charge stored, C is the capacitance, and V is the potential difference across the capacitor.


The energy stored in the capacitor is given by the equation,

U equals 1 half C V squared                                 (2)

where U is the energy stored in the capacitor.


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