I have two simple questions but I'm not 100% on how to get the correct result.(adsbygoogle = window.adsbygoogle || []).push({});

1. "The noise is reduced by 6 dB" means its amplitude is cut to _%?

How is it calculated to 50%? I try 20log(Av)...

2. Does this wave contain 30k hertz sine function? (see attachment)

The answer is yes, but I try f=1/T, in this case T = 0.1 ms, so f is 10k, how is it 30k?

Thank you

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Noise reduction and square wave/sine function question

Loading...

Similar Threads for Noise reduction square |
---|

Problems snubbing HF noise on flyback transistor |

Are the terminals of a Battery neutral? |

Understanding current measurement on an irregular waveform |

**Physics Forums | Science Articles, Homework Help, Discussion**