What is the difference between RMS and average value

Answer Posted / waqas

RMS value is Root of mean of the square of a sinusoidal signals instantaneous value.
Average value is sum of negative and positive side of a DC signal wave.
Average value for AC signal is always zero because half cycle of sinusoidal is +ve And half cycle is -ve so its sum will always be zero

Is This Answer Correct ?    16 Yes 12 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

what is consequences of neutral and earth connect?

1664


Hello seniors m an engineering student in 3rd yr..i want to know what are the software course in electrical field?i wanted to do certification course but i dont know much about the course?..Regards

1656


how to find three phase complex power in per unit and MVA?

1650


What is contract demand in solar system?

1132


Alternator rotor earth fault relay circuit

1554






What is different bewteen low or high impedance busbar protection scheme

3668


why i can not use thimble on capacitor duty contactor

884


How can find thermal state value in relay for calculate thermal overload.

1413


How the capacitance og capacitor volatage transformer is decided?

1525


1. What is differential relay? How it operates? 2.How to calculate the Short Circuit Impedance in Transformer? 3.What is the alternate solution for testing of polarity by using polarity tester while its milli ammeter does not works? 4. While testing the 33KV Busbar by using Hipot kit, what should be the test voltage we have to apply? 5. What is the procedure/activities to be taken to inject the current more than 2000A by using 2000A Loading Transformer? 6. Explain how you can give the overload setting to any Motor Protection Relay for a HT motors with formula and example? 7. Why restricted earth fault protection is needed? Why can’t differential Protection is sufficient? 8. What should be the minimum and maximum ohmic value for earthing? 9. Why DC Currents are not used in transformer? 10. What is the Frequency while we step up the voltage from 220V to 11KV? Is it possible? Explain it?

1768


pre arcing time of ehv breaker

1671


can i connect wavetrap in 2 different phase in EHV line?

1369


You are of electrical field and you are going for software? Why

1854


The magnitude of sum of two sinusoidal av voltage is equal to 230 volt.the magnitude of each individual voltage is also equal to 230 volt.what must be the phase difference between voltages?

1173


If Dg set load increase 25%, How much increase fuel Consumption (15 kva 2 cylinder DG set)

1837