Consider two voltage phasors:
V1 = 1 volt @ 50°, and
V2 = 1 volt @ 30°.
It follows then that the relative phase shift between these two phasors can be expressed by any of the four following descriptions in terms of leading and lagging angle relationships.
1.) V1 Leads V2 by 20°
2.)...
Hi, I would like to know what the theoretical implication is, as it pertains to RC circuits of the following hypothetical situation(s):
If one were to connected an ideal discharged capacitor in parallel with an ideal voltage source with zero resistance in the loop, the calculated RC time...
All, please help me refine, restate, explain, understand, expand, add, remove, answer the below statements/ questions. Thanks in advance.
1.) Voltage is considered a scalar quantity. (J/C in SI Derived Units) which is a magnitude of energy per coulomb...no direction with this example. Some...
Why is it that the utility will penalize a customer for a low power factor.
I cant imagine why they would penalize you if a purely reactive load puts all its power back into the mains.
Can someone please give me some general rules of thumb in dealing with VFDs and 3 phase dual wye motor winding configurations.
I would like to know when you would wire the motor up for a low voltage or high voltage application when using it with a VFD,under what conditions, and why.
Thanx
In a 480v Three Phase Induction Motor.....what kind of educated guess or assumption can be made as a cause, when two of the three fuses blow? Is there any type of significance in two fuses blowing instead of just one in a three phase motor circuit?
If only one fuse blew it basically would...
It is understood that you cannot have something from nothing, but how is this the case with a step up transformer? It seems that stepping up the voltage is stepping up the potential energy and since more windings actually increase the resistance there will be lower current which is how most...
I have been having a very difficult time grasping the concept of voltage drops across resistive elements.
In a series configuration....How is it that the greater the value of the resistor, the greater the voltage drop across that resistor? Why does voltage distribute itself that way, in...
Perhaps some one can explain to me what is meant by "current leads the voltage by 90 degrees"...let this inquiry be in regards to a purely capacitive circuit.
What seems to baffle me is why this terminology is used. Its not like the current just decided to occur before a potenial difference.
Help!!!!! Voltage drop is driving me insane!!!!
1. If the Voltage Drop across a load increases due to its added resistance, what happens to the voltage drop across other segments on the circuit?
2 Why does resistance decrease Voltage (create voltage drop) if the Voltage is a Force "APPLIED"...
[Ground"Ed" vs. Ground"Ing"]
Why does the ground"Ing" wire in a circuit draw high amounts of current and trips the breaker when a ground"Ed" (neutral) wire does not?
Is the neutral on a three phase system the same exact neutral on a single phase system?
What is the funtion of this neutral if its potential is always zero (the sum of its phasors)?
Does it carry any current? I would imagin that it does...but only back to the generator.
The Carrier of an Emf is in many definite/indefinite parts the net of the circuits Total Resistance (Rt). These definite/Indefinite parts are the SMALLEST degree expressed to that of a single atom, the basic Resistive properties or qualities of Itself, and the electron structure as pertaining to...
Pertaining to DC circuits:
a. What Phisically happens in Voltage Drop?
b. What exactly do electrons resist against in a conductor?
c. With batteries connected in series, why does Voltage phisically add up?
d. With batteries connected in parallel, why does current physically add up...
1.) Why can't you measure the potential difference across two batteries terminals, lets say a positive terminal from battery A and a negative terminal from battery B?
Theoredically there is still a potential difference....therefore voltage.....right????