Editing Electricity (section)

===Physiological effects===
{{Main|Electrical injury}}

A voltage applied to a human body causes an electric current through the tissues, and although the relationship is non-linear, the greater the voltage, the greater the current.<ref name=tleis>
{{Citation
| first = Nasser | last = Tleis
| title = Power System Modelling and Fault Analysis
| publisher = Elsevier
| year = 2008
| pages = 552–54
| isbn = 978-0-7506-8074-5}}
</ref> The threshold for perception varies with the supply frequency and with the path of the current, but is about 0.1&nbsp;mA to 1&nbsp;mA for mains-frequency electricity, though a current as low as a microamp can be detected as an [[electrovibration]] effect under certain conditions.<ref>
{{Citation
| first = Sverre | last = Grimnes
| title = Bioimpedance and Bioelectricity Basic
| publisher = Academic Press
| year = 2000
| pages = 301–09
| isbn = 0-12-303260-1}}
</ref> If the current is sufficiently high, it will cause muscle contraction, [[fibrillation]] of the heart, and [[burn|tissue burns]].<ref name=tleis/> The lack of any visible sign that a conductor is electrified makes electricity a particular hazard. The pain caused by an electric shock can be intense, leading electricity at times to be employed as a method of [[torture]].<ref>
{{Citation
| first1 = J.H. | last1 = Lipschultz
| first2 = M.L.J.H. | last2 = Hilt
| title = Crime and Local Television News
| publisher = Lawrence Erlbaum Associates
| year = 2002
| page = 95
| isbn = 0-8058-3620-9}}
</ref> Death caused by an electric shock—[[electrocution]]—is still used for [[capital punishment|judicial execution]] in some US states, though its use had become very rare by the end of the 20th century.<ref>{{Cite journal |last1=Linders |first1=Annulla |last2=Kansal |first2=Shobha Pai |last3=Shupe |first3=Kyle |last4=Oakley |first4=Samuel |date=2021 |title=The Promises and Perils of Technological Solutions to the Troubles with Capital Punishment |url=http://journals.sagepub.com/doi/10.1177/0160597620932892 |journal=Humanity & Society |language=en |volume=45 |issue=3 |pages=384–413 |doi=10.1177/0160597620932892 |s2cid=225595301 |issn=0160-5976}}</ref>