Let's begin with a simple calculation of the current drawn by a computer. The plate on the back of a personal computer says that the machine draws $2\mathrm{.}7$ A from a $\backslash (120\backslash$mathrm$\{$~V$\},60\backslash$mathrm$\{$~Hz$\}\backslash )$ line. For this PC$,$ what are $($a$)$ the average current, $($b$)$ the average of the square of the current, and $($c$)$ the current amplitude?

Figure

Part A $-$ Practice Problem:

A light bulb draws $0\mathrm{.}55$ A from a $\backslash (120\backslash$mathrm$\{$~V$\},60\backslash$mathrm$\{$~Hz$\}\backslash )$ line. For this bulb, find the current amplitude.

Express your answer with the appropriate units.

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I$=\backslash$square

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