Define selectivity and sensitivity of AM Receiver.

Define selectivity and sensitivity of AM Receiver. 
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Answer :

Selectivity:-It needs to accept signals of the wanted frequency and reject other unwanted frequencies.

Sensitivity:-The sensitivity of a radio receiver is its ability to amplify weak signals. It is often defined in terms of the voltage that must be applied to the receiver input terminals to give a standard output power, measured at the output terminals. 
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