basic question about signals

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Bhuvanesh123

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energy and power basic

in general we are checking whether the signal is power signal or energy signal. What is the use of finding whether the signal is power or energy signal. Do we have any special characteristics for energy and power signal that will be usefull for further analyses.In a nutshell WHY DO WE WANT CARE THE SIGNAL IS POWER OR ENERGY .Thank you in advance
 

signal cannot be both energy and power at the same time ,why?. Need justification.
 
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impact on power and energy signals

Does scaling ,time shifting, reversal have any impact on power and energy signals ?
 
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(denergy/dtime) = (deltaENERGY / deltaTIME) = change in energy with respect to per unit change in time.
 

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