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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.
3422What are the test involved in DG auto synchronizing panel before in manufacturing place before dispatch.
2 5480sometime battery charged and then automatically charged when rectifier ON conition, is there any chances please clarify the same.
1 3535sometime battery charged and then automatically charged when rectifier ON conition, is there any chances please clarify the same.
1945Can you please explain creepage distance in detail, for a 6.6kV cable head what must the distance be and how do you determine it?
2948Post New Electrical Engineering Questions
In PFI plant one stage capacitor connection is directly connected(with out megnetic contact controll). but why?
i have attended the interview on 4th June,08 at Kolkata in IOCL, can anybody tell me what is its result
what is physical distance of isolator to VCB in 33/11kv sub stations
one conductor length is L.and i am strech uniformly this conductor and made length is 2L.so resistance of this strech conductor is R=4R..but i want to know about area of stech conductor hows it become a/2..
what are the differant std sizes of cable trenches?
what is mean by kneepoint voltage? when it will happen? ( my doubt is, if CT secondary is open means ct get saturation or blas? what are factors are required for calculations? plz give currect anws:
What is electrical cable termination
How to Preparation of online test
In ups static switch if i gives the supply at output end it will open the circuit in stactic switch or not if it will open then how it operates.
How does zener phenomenon differ from avalanche breakdown?
Explain and give me an example of a time when you had to explain some new procedures to your co-workers for quality service delivery, how did you go about it?
Between educational qualification and practical work experience, give us a brief explanation on your practical experience in your past Endeavour that you performed well to the satisfaction of your past or present employer?
hello everybody. what does an abnormal stator winding impedance or dc resistance show? thanx
why and how voltage sharing in transformer, during magnetic balance test ?
How efficiency of thermal plant can be improved?
