For household electrical outlets in the United States, the root-mean-square value of the source emf is \(120 \mathrm{~V}\).

(a) For a hair dryer rated at \(1875 \mathrm{~W}\), what are the root-meansquare current and the current amplitude? Ignore any capacitive and inductive reactance in the hair dryer circuit.

(b) If an equally powerful hair dryer is to be sold in Germany, where household outlets have \(\mathscr{E}_{\text {rms }}=220 \mathrm{~V}\), what are \(I_{\mathrm{rms}}\) and \(I\) ?