- #1

arod2812

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## Homework Statement

A light bulb is connected to a 120.0-V wall socket. The current in the bulb depends on the time t according to the relation I = (0.669 A) sin [(491 Hz)t].

What is the frequency of the alternating current?

## Homework Equations

How do I use the given value for I?? (since it includes time, t)

## The Attempt at a Solution

I know that V=Vo * sin2pi * freq * time