What Is the RMS Current of a 10V Sine Wave Through a 5 Ohm Resistor?

[Tesladude]

So PWM can simulate a decrease in voltage when useing a stable amplitude.

10v50% duty cycle is 1/2 the amplitude meaning 5v. And if this is through a standard resistor then you will see 1/2 the current.

But what about a sine wave? What fraction or percentage does this come out to be? What current will you read with a 10v sine wave through a 5ohm resistor?

 

[anorlunda]

Most instruments read RMS values. That stands for the Root Mean Square. It is valid for any periodic waveform.

You can fin more explanation and formulas here:

https://en.m.wikipedia.org/wiki/Root_mean_square