Question

What is the peak voltage of a \[220\,\mathrm{V}\] AC supply?

Options

• Approximately \[220\,\mathrm{V}\].

• Approximately \[311\,\mathrm{V}\].

• Approximately \[484\,\mathrm{V}\].

• Approximately \[156\,\mathrm{V}\].

Answer 1

The peak voltage is \[v_m=\sqrt{2}V_{\mathrm{rms}}\]. For \[V_{\mathrm{rms}}=220\,\mathrm{V}\], this is approximately \[311\,\mathrm{V}\].