9.76 a) Find the steady-state expressions for the cur- rents i, and i in the circuit in Fig. P9.76 when PSPICE MULTISIM Vg 168 cos 800t V. b) Find the coefficient of coupling. c) Find the energy stored in the magnetically cou- pled coils at t = 625 us and t = 1250 µs. Figure P9.76 80 N 100 mH 100 mH 400 mH 2400

Use the mesh-current method to find the branch currents I, I,, I, and Ia in the circuit shown in Fig. P9.60. Figure P9.60 2/0° A j5 N -j5 N 100/0° V I 5N 50/0° V

a. Determine time constant(t). b. Write the mathematical expression for the current iL after the switch is closed at t = 0 s. c. Write the mathematical expression for VL and VR after the switch is closed at t = 0 s. d. Determine iL and VL at t = 1t, 3t, and 5t e. Sketch the waveforms of iL, VL, and VR for the. storage phase.   Please answer all subpart in typing format please Not only three subpart I will dislike   Please

Problem 4-A 80 kHz sinusoidal voltage has zero phase angle and a maximum amplitude of 25 mV. When this voltage is applied across the terminals of a capacitor, the resulting steady-state current has a maximum amplitude of 628.32 μA. a) What is the frequency of the current in radians per second? b) What is the phase angle of the current? c) What is the impedance of the capacitor? d) What is the capacitance of the capacitor in microfarads?