- #1

- 29

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## Homework Statement

[PLAIN]http://img705.imageshack.us/img705/4462/40230468.jpg [Broken]

## Homework Equations

Power Factor = True Power / Apparent Power

f = 1 / (2*pi*root(LC))

Z = root(R^2 + (Xl - Xc)^2) = R

## The Attempt at a Solution

a)i) 1? Because it's purely resistive, but this surely can't be right, because it's 4 marks.

ii to iv) no idea

b)i)

f = 1 / (2*pi*root(LC))

f = 64.97 Hz

b)ii) I don't see how the raise in resistance effects the frequency as the resonant frequency formula doesn't contain R.

## Homework Statement

## Homework Equations

## The Attempt at a Solution

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