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?.

Two technicians are discussing a resistance measurement between the can-h and can-l wires. technician a says this measurement should be done with the ignition switch in the "run" position. technician b states that a measurement of 0 ohms indicates an open in the network. which technician is correct?

When temperature of a substance increases, of its particles increase resulting in more between particles. real world applications of thermal expansion absolute zero (-273 degrees c) is the lowest possible temperature on the kelvin scale. it is a measure of where a substance has no kinetic energy. heat is a process of the . energy flows spontaneously from a object to a until equilibrium is reached. heat is measured in heat is transferred throughis a method of heat transfer that occurs between particles of matter that are in direct contact with each other. are poor conductors that impede / reduce the rate of heat transfer. is a method of heat transfer that occurs in fluids (non-solids) by means of currents. real world application of convectiona method of heat transfer through electromagnetic waves. when energy moves from one object to another inside a closed system, no energy is or in the system in the transaction. systems will spontaneously move to a state of organized energy or high disorder over time called

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2