It does not work that way.
I volt is 1 volt
1 volt DC =1.4 voltsAC at a continuous rate of delivering energy.
AnswerUnless otherwise stated, alternating currents are alwaysexpressed as root-mean-square (rms) values. So, 1 A (AC) is an rms value (which is 0.707 times its amplitude or peak value).
By definition, 1 A (AC) will do exactly the same amount of work as 1 A (DC). In other words, 1 A (AC) is exactly equivalent to 1 A (DC)
Since current is proportional to voltage (Ohm's Law), this means that 1 V (AC) is exactly equivalent to 1 V (DC).
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You get power by multiplying the amperes and the voltage. 12V, 10A dc would give the same power as 120V, 1A ac.
"Voltage peak" is generally used to denote the maximum(amplitude) of AC voltage supply. It can not be approximated as dc value. The closest approximation one can make for dc value of a ac supply is the RMS(root mean square) value of the voltage. So that the ohmic loss caused by the given AC voltage supply is equivalent to that caused by a dc supply having value equal to the RMS of this AC supply (for given impedance & time).
A DC motor can be built to operate on any voltage.
To convert DC values to AC values if you are wanting RMS values they are the same. 100V DC and 100V AC (RMS) are the same "value". If you want to know the Peak-To-Peak AC value you would multiply the RMS value by 1.414. So 100V AC RMS equals 141.4 V Peak to Peak.