यदि तीन 5 μF के संधारित्र (capacitors) समानांतर क्रम में जुड़े हुए हैं, तो संयोजन की कुल समतुल्य धारिता कितनी होगी?

Two tram cars (A and B) located 2 km and 6 km away from a substation return 40 A and 20 A, respectively, to the rails. The substation voltage is 600 V DC. The resistance of the trolley wire is 0.25 Ω/km and that of the track is 0.03 Ω/km. Calculate the voltage across each tram car.

If three identical electrical loads of 80Ω each are connected in STAR (Wye) topology to a 3-phase supply of line voltage 240√3 V, then what will be the line current?