We often refer to the electricity at a typical household outlet as being 120 v. in fact, the voltage of this ac source varies; the 120 v is we often refer to the electricity at a typical household outlet as being 120 v. in fact, the voltage of this ac source varies; the 120 v is the minimum value of the voltage the peak value of the voltage the average value of the voltage the rms value of the voltage

Explanation:

We often refer to the electricity at a typical household outlet as being 120 V. In fact, the voltage of this AC source varies; the 120 V is "the rms value of the voltage".

The rms value of voltage is given by :

Where

is the peak value of voltage

So, the correct option is (d). " rms value of voltage".

since you're a real machine, your ama is always less than your ima, because you can never totally eliminate friction.