The below graph shows the current to an electric clothes dryer vs time when it i

Question

The below graph shows the current to an electric clothes dryer vs time when it is connected to a 115V (rms), 50Hz wall outlet.

The below graph shows the current to an electric clothes dryer vs time when it is connected to a 115V (rms), 50Hz wall outlet. 1) What is the peak voltage? I figured this out to be (2^.5)(Vrms)= 1.63*10^2 V 2)What is the rms value of the current drawn by the dryer? Hint:Use the relation between the peak current (graph) and the rms current. 3)What is the resistance of the clothes dryer?

Explanation / Answer

(b) rms current = peak current /sqrt2 =

        = 10 A / sqrt2 = 7.071 A

(c) resistance = rms voltage / rms current = 115/7.071 =

          = 16.3 ohms

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