hello , I have an experiment that i have to design , this is the problem statement :
"Most of Mobile telephone users encounter noise and interference from speakers of PCs at frequencies less than 20kHz. This is generally observed during an incoming call" , my question what is the range of frequency because i searched alot and didn't find any answer
"Most of Mobile telephone users encounter noise and interference from speakers of PCs at frequencies less than 20kHz. This is generally observed during an incoming call" , my question what is the range of frequency because i searched alot and didn't find any answer