P5.94. A delta-connected source delivers power to a delta-connected load, as shown in Figure P5.94. The rms line-to-line voltage at the source is Vabrms =440 V. The load impedance is ZA = 12 + j3. Find InA, VAB, IAB, the total power delivered to the load, and the power lost in the line. %D 1Ω +2Ω Vm [30° 12 +j2 2 ZA a B Vm/-90° Vm /150° 12 +j2 2 Figure P5.94

5. Two ac sources feed a common variable resistive load as shown in figure. Under the maximum power transfer condition, the power absorbed by the load resistance RL is? 11020° 602 w 18.0 m 652 802 Mm 9020°

P5.45. Find the phasors for the current and the voltages for the circuit shown in Figure P5.45. Construct a phasor diagram showing V₁, I, VR, and Vc. What is the phase relationship between V, and I? S v₂(t) = 10 cos(500r) + + 1000 Ω www VR i Figure P5.45 + VC 2 μF ciples T

Solve for the mesh currents shown in Figure P5.54.

Q2. For the circuit shown below, sketch the current waveforms is and io and determine the Average and RMS for both currents. a = 50° T1 50 2 ot Vs = 300 sin 100rt T2 ot

Add the two voltages below together (phasor voltages are RMS). ?ଵ =60 ? ∠ 0° ?ଶ =80 ?∠ 270° a) What is the resultant as a phasor using RMS voltage and degrees? b) What is the resultant voltage as a sinusoidal equation if the frequency is 100 Hz?

Consider the situation shown in (Figure 1). A 1000-V-rms source delivers power to a load. The load consumes 140 kW with a power factor of 55 percent lagging.  Time remaining: 00:07:30 Electrical Engineering Consider the situation shown in (Figure 1). A 1000-V-rms source delivers power to a load. The load consumes 140 kW with a power factor of 55 percent lagging. 1- Find the phasor II, assuming that the capacitor is not connected to the circuit. Enter your answer using polar notation. Express argument in degrees. 2-Find the value of the capacitance that must be connected in parallel with the load to achieve a power factor of 100 percent. Express your answer to three significant figures and include the appropriate units. 3-Usually, power-systems engineers rate capacitances used for power-factor correction in terms of their reactive power rating. What is the rating of this capacitance in kVAR? Express your answer using three significant figures. 4-Assuming that this…