9:21 PM AT&T; 11% o loncapa1.fsu.edu Problem 29-75a: A coil is connected to a 60

Question

9:21 PM AT&T; 11% o loncapa1.fsu.edu Problem 29-75a: A coil is connected to a 60-Hz, 100-V ac generator. At this frequency the coil has an impedance of 12.2 2 and a reactance of 9.0 2. What is the current in the coil? 8.2 A You are correct. Previous Tries Your receipt no s 162-8276 (2 Part B Problem 29-75b: What is the phase angle between the current and the applied voltage? (Calculate the angle in degrees, but do not provide units.) 30.7 Submit Answer Previous Incorrect. Tries 6/15 Tries Part C Problem 29-75c: What series capacitance is required so that the current and voltage are in phase? 2.947x10 F You are correct. Previous Tries Your receipt no is 162-4388 2 Part D Problem 29-75d: What then is the voltage measured across the capacitor? 73V

Explanation / Answer

(B) sin(phi) = XL / Z = 9 / 12.2

phi = sin^-1(9/12.2)

phi = 47.5 deg

(D) XL = XC

Xc= 9 ohm

Z = R = sqrt[ 12.2^2 - 9^2] = 8.24 ohm

I = 100 / 8.24 = 12.14 A

Vc = I Xc = 12.14 x 9 = 109.22 Volt

Related Questions

Navigate

• Browse (All)
• Browse 9
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.