1- XC and the RC time constant are both measures of the reaction of C to a change in ____? 2-The power factor is a numerical ratio with a value between 0 and 1 equal to the ______________ of the phase angle. 3-When V and I are out of phase because of reactance, the product of V times I is called ______________ power 4-For _____________ inductors, the branch currents can be added algebraically. 5- The ______________ power in watts can be calculated as I^2R 6-Calculate XL with L = 30mH and f = 1kHz ( I have Xl=2piFL 2*3.141592653*1kHz*30mH =188 ohms Please check) 7-A parallel RL circuit has the values, R = 5kohms, XL = 5kohms. A voltage source of Vt = 10Vrms is connected in parallel to R and L. Determine the total current, It delivered by the voltage source Vt. 8-A series RC circuit has R = 1Mohm and C = 1microF. How long would it take for the capacitor to fully discharge if it is initially fully charged? 9-A circuit has real power = 300W and an apparent power of 500VA. Determine the power factor and phase angle. 10-The time constant for an LR series circuit is T = 0.1s and R = 10ohms. Calculate the inductance L.
2767What are the test involved in DG auto synchronizing panel before in manufacturing place before dispatch.
2 4428sometime battery charged and then automatically charged when rectifier ON conition, is there any chances please clarify the same.
1 2718sometime battery charged and then automatically charged when rectifier ON conition, is there any chances please clarify the same.
1369Can you please explain creepage distance in detail, for a 6.6kV cable head what must the distance be and how do you determine it?
2322Post New Electrical Engineering Questions
In a 3 phase 4-wire system. For a 3.5 core cable if all loads are single phase and balanced, what will be neutral current? will it be sum of all phase currents? Or it will be zero? And if loads are unbalanced what will be neutral current?
what are the protecyion of transformer & generators
any body,pls tell me how to done relay coordination ? how to coordinate by TCC curve?how to read the tcc curve?
Define steady state error.
State Maximum Power Transfer theorem.
How Can I calculate for the photometrics requirements for a street lighting? Data given are: 45 units of 6 meter light pole with 150 watts metal halide lamp, 220 volts and installed in a promenade area.
WHAT IS LOAD CELL
In layman terms, what is the difference of Dielectric strength and dielectric constant when speaking of an insulating oil
Can anyone please provide me details of MCCB/Contactor/SFU rating calculations for a motor feeder..for example 50 kw.. not from type-2 cordination chart. i want manual calculations..
help me with the question that might be ask on the interview for technical position
what material is the electrical housing wire made of? is there any difference for the telephone lines?
Write down the design procedure of commutaj.
Is there a diode made that works with AC 120 volt 20 amp? If so can it completely stop all current flow in 1 direction at all times?
Whats the minimum value for I.R. that can be allowed for HT & LT alternators for operation?
What is sensitivity of a measurement?
