Physics, 07.11.2019 02:31 DepressionCentral

Anew cordless phone emits 4.0 mw at 5.8 ghz. the manufacturer claims that the phone has a range of 100 feet.

if we assume that the wave spreads out evenly with no obstructions, what is the electric field strength at the base unit 100 feet from the phone?

need answer in "dimensions of an electric field" which i believe is n/c.

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