in terms of calculating energy and power, why don't we use absolute value of signal and then integrate it from -inf to +inf instead of squaring it and then integrating it over -inf to +inf?(adsbygoogle = window.adsbygoogle || []).push({});

for example ∫|sinx|dx (from -inf to +inf) will give you, relatively speaking, the same answer as ∫[sinx]^2dx (from -inf to +inf).

what is physical significance of determining if signal is power or energy one? what those two quantities tell you besides if signal is periodic/non-periodic?

**Physics Forums - The Fusion of Science and Community**

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

# Energy and power signals

Have something to add?

Draft saved
Draft deleted

Loading...

Similar Threads - Energy power signals | Date |
---|---|

Can electric energy be directly measured? | Jul 30, 2017 |

How to calculate the energy and power of a signal? | Jul 20, 2016 |

Power - what is the use of calculating power and energy of signal? | Jul 6, 2012 |

Power and energy signals | Sep 23, 2011 |

**Physics Forums - The Fusion of Science and Community**