20) If v(t) = 5cos(wt) +6cos(wt+z/3)+4 V. The RMS value of this voltage source is ... V. 18) The source current before adding the capacitor is...A: a) 8 Z-36.87 e) 853.13 b) 2.672-2.36 f) 1.33 c) 102-36.87 g TO Z-53.13 d) 2.65 Z-85.23 h) None of the above 19) The source current after adding the capacitor is ...A: b) 12.67 Z-18.199 ) 10 Z-36.87 c) 7.67/72.36 g) 8.42 2-18.19 d) 2.65 -85.23 h) None of the above a) 102-36.870 e) j3.37 a) 7.84 c) 12 b) 4.19 ) 8.84 c) 4.19 g) 8 d) 8.33 h) None of the above + 4