An ac voltage, whose peak value is 150 V, is across a 330 -Ω resistor.

What is the peak current in the resistor? answer in A

What is the rms current in the resistor? answer in A

Solutions

Expert Solution

$$ \begin{aligned} &\mathrm{I}=V / R\\ &\mathrm{I}=\text { peak current }=150 / 330=0.45454545454546 \mathrm{~A}\\ &\text { rms current we just use the rms voltage. }\\ &\text { so } \mathrm{V}_{\mathrm{rms}}=\mathrm{V}_{0} / \sqrt{2}\\ &=150 / \sqrt{2}=106.06\\ &\begin{array}{l} \text { rms current }=106.06 \text { / } 330=0.32141217326661251515 \end{array} \end{aligned} $$

Dr. OWL answered 3 years ago

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