A 3-phase 480-volt circuit has a positive-sequence y-connected source and supplies a delta-connected load. The impedance of the lines between the source and load is negligible. The angle of vab is 0/ and the phase impedance of the load is 20 - j8 ohms. A) draw the circuit. Label the value of the phase voltages at the source. Label nodes a, b, and c. Label the line currents ia , ib , and ic. Label the l-l voltages at the load: vab , vbc, and vca. Label the phase currents at the load: iab , ibc, and ica. B) determine the phasor values of the l-l voltages at the load. Draw the closed voltage phasor diagram for the system, showing all l-l and l-n voltages. C) determine the phasor value of the line currents. D) determine the phasor value of the phase currents in the source and the load. E) calculate the complex power s that is consumed by the load and draw the power triangle. F) what is the power factor of the load?.

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation:

iron would move it is magnetic there is a mag field around the current in the wire

igneous rocks also form where plates converge. the subducting plate melts as it sinks into the crust of the earth, and the melt rises into the overriding plate forming volcanoes. metamorphic rocks are formed mainly in the lithosphere, wherever there is high pressure and high temperature. -woods

i really dont know but i will try okay.

so i think u would just add all them up and get your answer..