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Electric Current and Biological Effects

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Questions and Answers

Which of the following is the definition of electrocution?

Tissue damage produced directly by electrical current or voltage

Death caused by electric shock (correct)

Indirect or secondary injuries caused by electric shock

A sudden violent response to electric current flow through any part of a person's body

What is the typical range of AC current frequency for stimulatory effects to occur?

5 mA

0 Hz

25 mA

50-100 Hz (correct)

What is the maximum safe value for AC current to avoid stimulatory effects?

50-100 Hz

0 Hz

5 mA (correct)

25 mA

Which of the following is an example of a secondary injury caused by electric shock?

Indirect or secondary injuries such as falls Signup and view all the answers

What is the maximum safe value for DC current to avoid stimulatory effects?

25 mA Signup and view all the answers

Which of the following is the definition of electric shock?

A sudden violent response to electric current flow through any part of a person’s body Signup and view all the answers

Which of the following is the definition of primary electrical injury?

Tissue damage produced directly by electrical current or voltage (burns) Signup and view all the answers

Which of the following is the definition of secondary injuries related to electric shock?

Indirect or secondary injuries such as falls caused by electric shock Signup and view all the answers

Which of the following is the most correct statement about the effects of electrical current on the human body?

Stimulatory effects occur for DC current with a frequency of 0 and a current of 25 mA Signup and view all the answers

What is the purpose of electrical security systems-grounding?

To prevent electric shock Signup and view all the answers