If the time constant of the LR circuit illustrated below is T-5s, what is L, the unknown inductance? 2H mmm A. 2H B. 7H C. 18H D. 19H E. 20H 2H m ww mu 1.5 зл A
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- Assume that the voltage drop across the resistor, ER, is 78 V; the voltage drop across the capacitor, EC, is 104 V; and the circuit has a total impedance, Z, of 20 . The frequency of the AC voltage is 60 Hz. Find the missing values. ET ER78V EC104V IT IR IC Z20 R XC VA P VARSC PF CInductive Circuits Fill in all the missing values. Refer to the following formulas: XL=2fLL=XL2ff=XL2L Inductance (H) Frequency (Hz) Inductive Reactance ( ) 1.2 60 0.085 213.628 1000 4712.389 0.65 600 3.6 678.584 25 411.459 0.5 60 0.85 6408.849 20 201.062 0.45 400 4.8 2412.743 1000 40.841Assume that the current flow through the resistor, IR, is 15 A; the current flow through the inductor, IL is 36 A; and the circuit has an apparent power of 10,803 VA. The frequency of the AC voltage is 60 Hz. ET ER EL IT IR15A IL36A Z R XL VA10,803 P VARSL PF L
- The current through a 12-mH inductor is 4 sin 100t A. Find the voltage, across the inductor for 0 < t < π/200 s. A. 1.56 cos 100t VB. 3.12 sin 100t VC. 5.78 cos 100t VD. 4.80 cos 100t VIf Vs=147V, R1=49kΩ, R2=60kΩ, R3=24kΩ, L=181mH, determine the inductor current, iL (in mA) at t=6micro-sThe current through a 12-mH inductor is 4 sin 100t A. Find the energy stored at t = π/200 s. A. 34 mJ B. 9.59 mJ C. 96 mJ D. 48 mJ
- Find the impedance theoretically of a wire if it carries the frequency 10 kHz have a voltage is 8v, the current is 2mA, resistance is 12 kΩ , inductance 27 mH and capacitance 0.2 µfThe current in the circuit is known to bei=B1e−2000tcos1500t+B2e−2000tsin1500t, t≥0.The capacitor has a value of 80 nF; the initial value of the current is 7.5mA; and the initial voltage on the capacitor is –30 V. Find the values ofR, L, B1, and B218. A dc voltage E is applied across an RL circuit at t = 0. At what time after, is the voltage across the resistor equal to that across the inductor? A. 0.693 TC B. 0.673 TC C. 0.707 TC D. 0.779 TC