*5.7 An 8 cm x 12 cm rectangular loop of wire is situated in the x-y plane with the center of the loop at the origin and its long sides parallel to the x axis. The loop has a current of 50 A flowing clockwise (when viewed from above). Determine the magnetic flux density at the center of the loop.

The IT servers for a medium-sized company need to be protected fromgrid failures (e.g. blackout) and thus is powered through anuninterruptable power supply (UPS) unit. The UPS consists of a 3-phase diode rectifier powering the dc bus, which then splits between a3-phase inverter unit and a battery energy storage system (BESS). UPSparameters are given in Table B2 and a general schematic is shown inFigure B2.a) Assuming that the inverter and BESS pull a combined constant current,IDC, from the dc bus, draw the approximate waveforms over one full accycle for: (i) the three ac line voltages, (ii) the three ac currents, and(iii) the total dc bus voltage.

CIRCIUTS

3- For the R-C circuit, Determine the time constant for the following circuit when the switch is thrown into position 1. b). Plot the wave forms for Ne andic For the switch in position 1. cli Plot the warefor for va and ic for the switch in position 2. ic 24 1K AK