The magnitude of the line voltage at the terminals of a balanced y-connected load is 660 v. the load impedance is 35.48+j26.86ω/ϕ. the load is fed from a line that has an impedance of 0.25+j3ω/ϕ.a) what is the magnitude of the line current? b) what is the magnitude of the line voltage at the source?

A2-m rigid tank initially contains saturated water vapor at 100 kpa. the tank is connected to a supply line through a valve. steam is flowing in the supply line at 600 kpa and 300 c. the valve is opened, and steam is allowed to enter the tank until the pressure in the tank reaches the line pressure, at which point the valve is closed. a thermometer placed in the tank indicates that the temperature at the final state is 200°c. determine (a) the mass of steam that has entered the tank (b) the amount of heat transfer.