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A new cordless phone emits 2.9 mW at 5.8 GHz. The manufacturer claims that the phone has a range of 100 feet.

Part A

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?

Express your answer to two significant figures and include the appropriate units.

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Category:- Physics
Reference No.:- M91944646

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