Part A A damped LOC circuit loses 4.0% of its electromagnetic energy per cycle to thermal energy. If L = 75 mH and C = 6.80 µF, what is the value of R?

2. A capacitor of 12µF is charged by a 30 V battery. Afterwards, the capacitor is disconnected from the battery and connected to an inductor with L = 2H. a. What is the angular frequency? b. What is the initial charge on the capacitor? What is the charge on the capacitor at 0.05 s? с.

Part A In an L-C circuit, C = 3.23 µF and L = 85.0 mH . What is the maximum charge on the capacitor? During the oscillations the maximum current in the inductor is 0.848 mA ΑΣφ ? Qmaz = C Submit Request Answer Part B What is the magnitude of the charge on the capacitor at an instant when the current in the inductor has magnitude 0.505 mA ? Αφ C Submit Request Answer 圓 圓

Induction: Part C If the magnetic field steadily decreases from B to zero during a time interval t, what is the magnitude E_cal of the induced emf? (Express your answer in terms of x, y, B and t.) Part D If the magnetic field steadily decreases from B to zero during a time interval t, what is the magnitude I of the induced current? (Express your answer in terms of x, y, B, t and the resistance R.)

In recent years it has been possible to buy a 1.0 F capacitor. This is an enormously large amount of capacitance. Suppose you want to build a 1.1 Hz oscillator with a 1.0 F capacitor. You have a spool of 0.35-mm-diameter wire and a 3.1-cm-diameter plastic cylinder. /myct/itemView?assignment ProblemID=195605802&offset=next F2 # 3 E 80 F3 $ 4 R F FA 5 V T L FS G 6 B ▼ Part A How long must your inductor be if you wrap it with 2 layers of closely spaced turns? Express your answer with the appropriate units. ▸ View Available Hint(s) 1= Value Submit Provide Feedback Y C FO H & 7 HA « N F7 U 4 ** 8 J Units DII F8 M SE ? 9 DD K F9 O ) O 36 A F10 L P S F11 { F12

An electric doorbell uses an electromagnet to pull on a steel hammer that rings the bell. The electromagnet has inductance 65.0 mH and resistance 6.36 N (meaning you can treat it as an LR circuit with the inductance in series with the resistance). It operates from a 6.00-V source. Part A How long does it take for the current in the electromagnet to reach 0.650 A? Express your answer with the appropriate units. HA t = Value Units Submit Request Answer

E The alternating current in an electric inductor is I = Z where E is voltage and Z= R + X₁ iis impedance. If E = 6( cos 20° + i sin 20°), R = 8, and X₁ = 2, find the current. The current is (Type your answer in the form a + bi. Round to the nearest hundredth as needed.)