Asked by derek
Two parallel plate capacitors are identical, except that one of them is empty and the other contains a material with a dielectric constant of 4.2 in the space between the plates. The empty capacitor is connected between the terminals of an ac generator that has a fixed frequency and rms voltage. The generator delivers a current of 0.23 A. What current does the generator deliver after the other capacitor is connected in parallel with the first one?
Help :/
Help :/
Answers
Answered by
Kay
Vm = Xc Im
Xc = 1/ωC
therefore for fixed V
I2/I1 = C2 /C1
C2 = 4.2C1 + C1 = 5.2C1 (they are connected in parallel)
I2 = (C2/C1)I1 = 5.2*0.22 = 1.144 A
Xc = 1/ωC
therefore for fixed V
I2/I1 = C2 /C1
C2 = 4.2C1 + C1 = 5.2C1 (they are connected in parallel)
I2 = (C2/C1)I1 = 5.2*0.22 = 1.144 A
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.