(adsbygoogle = window.adsbygoogle || []).push({}); Impedance -- Current phasor

In a series circuit of two elements, the voltage and current, for w = 2000 rad/s, are V = 150|-45° and I = 4,74|-116,6°.That variation in the frequency of the source would result in a phasor current of 6 amps? Assuming an unlimited variation in the frequency, what is the maximum possible value for the current?

The answer is 23.6% reduction in f

And the maximum 15 amps

I not find the answer

My attempt:

Z = V/I = 31,6|71,6° = 9,97 + 30i

Xl = 30

wL = 30

L = 0,015 and f = 318Hz

For I = 6 amps I assumed I' = 6|-116,6

Z' = V/I' = 25|71,6° = 7,89 + 23,72i

Xl = 23,72

2pif'L = 23,72

f' = 252 Hz

I find f' reduction 20,76% is correct ? How I find the maximum value for the current ?

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Impedance - Current phasor

**Physics Forums | Science Articles, Homework Help, Discussion**