Question

The rms current output in a circuit is 7.75 A. What is the maximum current?

Answer 1

The maximum current in an ac circuit is related to the rms current by:

`I_(rms) = (I_0)/( √(2) )`
where
`I_(rms)` is the rms current and
`I_0` is the maximum current.

If we re-arrange the formula and we use
`I_(rms)=7.75 A`, we can find the value of the maximum current:

`I_0 = √(2) I_(rms) = √(2)(7.75 A)=11.0 A`