two 480V alternators in parallel have the same field
excitation. One delivers 400A at 0.9 pf lagging and the other
delivers 200A at 0.72 pf lagging. Find the overall pf of the
system
two 480V alternators in parallel have the same field excitation. One delivers 400A at 0.9 pf...
Two capacitors have capacitances of 6.5 pF and 40 pF. Initially, the first one has a potential difference of 17.0 V and the second one 7.5 V. If the capacitors are now connected In parallel, what is their common potential difference? Submit Answer
Good day all.
I am facing the following problem and would like to seek some
kind help, please.
Sincerely appreciate all help and input.
- Ms Tan
1. An 10 MVA, 33 kV, 34 pole, 60 Hz, three-phase wye-connected synchronous generator has a synchronous reactance of 10 and a negligible armature resistance. a. Find the synchronous speed of this generator. b. At a certain excitation, the generator delivers 50% of rated load at 0.7 leading power factor at '33' kV....
Two capacitors have capacitances of 5.0 pF and 3.5 pF. Initially, the first one has a potential difference of 13.0 V and the second one 8.0 V. If the capacitors are now connected in parallel, what is their common potential difference? v Submit Answer View Previous Question Question 9 of 11 View Next Question
Two large parallel copper plates are 4.86 cm apart and have a uniform electric field of magnitude E = 5.60 N/C between them (see Figure). An electron is released from the negative plate at the same time that a proton is released from the positive plate. Neglect the force of the particles on each other and find their distance from the positive plate when they pass each other.
Two large parallel copper plates are 3.73 cm apart and have a uniform electric field of magnitude E = 7.98 N/C between them (see the figure). An electron is released from the negative plate at the same time that a proton is released from the positive plate. Neglect the force of the particles on each other and find their distance from the positive plate when they pass each other.
5) The electric field everywhere There are two infinite, thin parallel sheets of charge, one carrying a charge per area o and the other carrying a charge per area -o. Find the electric field eveywhere.
Two large parallel copper plates are 6.32 cm apart and have a uniform electric field of magnitude E = 4.41 N/C between them (see the figure). An electron is released from the negative plate at the same time that a proton is released from the positive plate. Neglect the force of the particles on each other and find their distance from the positive plate when they pass each other Positive plate P Negative plate
Two large parallel copper plates are 3.35 cm apart and have a uniform electric field of magnitude E - 3.21 N/C between them (see the figure). An electron is released from the negative plate at the same time that a proton is released from the positive plate. Neglect the force of the particles on each other and find their distance from the positive plate when they pass each other. Positive plate P Negative plate Number Units
10. Two loads connected in parallel draw a total of 2.4 kW at 0.8 pflagging from a 120-V rms, 60- Hz line. One load absorbs 1.5 kW at a 0.707 pf lagging. Determine: (a) the pf of the second load, INV 11. Calculate the line currents for the system shown in figure. Calculate also the total power and reactive power consumed by the load. w 12. For the balanced three-phase circuit in Fig.. Calculate the line currents, the phase voltage...
A capacitor consists of two short sections of parallel wires in air. The voltage on one wire is 60 V and on the other is -60 V. The two wires carry equal and opposite charge with the magnitude of 476 pC. Find the capacitance of the capacitor in pF