QUESTION 3 5pts If vi(t) = -10 sin(wt - 30°) V and vz(t) = 20 cos(wt +45°) V. find v(t) = V(t) + vz(t)
Given v(t) = 60cos(wt - 10) V and i(t) = 1.5 cos(wt +50)A find a. Complex Power (S) (2 pts.) b. Apparent Power (SI)(1 pts.) C. Real Power (P) (1 pts.) d. Power factor (2 pts.) e. Reactive Power (Q) (1 pts.) f. Impedance (Z) (1 pts.) g. Capacitance (C) ((2 pts.)
20. The voltage and current in an electrical load is given by v(t) = 100 cos(wt + 15°) and i(t) = 2 cos(wt – 15°). The reactive power Q in the load is 21. An electrical load absorbs an average power of 8kW at a leading power factor of 0.8. The reactive power in the load is 22. A balanced Y-connected load with an impedance of 104–30°N? per phase is supplied by a balanced A-connected source with Va = 208/30°V...
300) V and v2 (t) 20 cos(wt 45°) V, find v(t) v1 (t)2(t) If v1(t) = -10 sin(wt _ -
Example 1 The voltage across the load is v(t) = 60 cos(wt - 10°) V and the current through the element in the direction of I voltage drop is i(t) = 1.5 sin(wt + 50°) A. Find a) The complex and apparent powers b) The real and the reactive powers c) The power factor and the load impedance.
(a) Write the relationship between the instantaneous time voltage i(t) = 1, cos(wt+p) and its phasor transform I. Write phasor transforms of the following voltages and currents. All answers should be in the form of AZB where A is a positive number A 20 and B is given in degrees over the range of -180° <B S 180°. Make sure that you include the units. Show all work to receive partial credit. (6) v(t) = VŽ cos(7t + 1/4 -...
4. Plot the locus of E(0,t) for a plane wave with Ē (z,t) = î cos(wt+kz) +ŷ 1.3 sin(wt + kz) (V/m) Determine the polarization state from your plot. Determine the direction of propagation of the wave.
5. Calculate the polarization angles (y, χ) for the wave E(z,t)- f 3 cos(ωt-kz) + 93 cos(wt-k2+ 450) (V/m). Plot E(0, t) to show the polarization state. 5. Calculate the polarization angles (y, χ) for the wave E(z,t)- f 3 cos(ωt-kz) + 93 cos(wt-k2+ 450) (V/m). Plot E(0, t) to show the polarization state.
1. The circuit below is energized by vs(t) = 20 cos(50000) V and i(t) = 4 cos(50000) mA. d 10nF 3400 m HH Od vs(1) HA 40 nF ist) 5 k92 a) Find the Thevenin equivalent as seen from a-b. b) Find the Thevenin equivalent as seen from c-d.
Find i(t) fort > 0 010 mA 2012 2409 20 mA 80 ml A i(t) = 10mA, B i(t) = 30 - 20e-500 mA C i(t) = 20 - 30e-500 mA D i(t) = -30e-500 mA Unanswered . 2 attempts left