Thursday, June 18, 2009

What is the SAR level?

SAR level is used to describe the safe exposure level
of electromagnetic radiations typically produced by
mobile devices for the human body. SAR stands for
specific absorption rate, which stands for the amount
of radiation power in Watts absorbed by per kilogram
of tissue. Hence-

SAR = (Electrical conductivity of sample * E^2)/density


The FCC limit for public exposure from cellular telephones
is an SAR level of 1.6 watts per kilogram (1.6 W/kg).

A list of the top 20 handsets for highest and lowest mobile
emissions is available on CNET.com

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