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viciado123
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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 ?
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 ?