- #1
Maciej Orman
How does one calculate an excess charge distribution across 100 mH single layer inductor with 30 Hz voltage at amplitude of 10 V ?
You probably don't want to do that. The charge distribution will be much too hard to calculate, and will also be rarely used for anything. Generally you want to know the current throught the inductor. You will certainly need the frequency for this.Maciej Orman said:How does one calculate an excess charge distribution across 100 mH single layer inductor with 30 Hz voltage at amplitude of 10 V ?
I need the charge peek value... Current is simple to calculate... As I understand the dynamic charge distribution is not only on the surface of the wire but also in the volume of copper..willem2 said:You probably don't want to do that. The charge distribution will be much too hard to calculate, and will also be rarely used for anything. Generally you want to know the current throught the inductor. You will certainly need the frequency for this.
Excess charge in an inductor refers to the buildup of excess electric charge within the inductor due to self-inductance. This occurs when a changing magnetic field induces a current in the inductor, causing an accumulation of charge on the surface of the inductor's coil.
Self-inductance is a phenomenon in which a changing magnetic field induces an opposing voltage in the circuit. This voltage causes an accumulation of excess charge on the surface of the inductor's coil, resulting in an overall increase in the inductor's stored energy.
The buildup of excess charge in an inductor can lead to a higher voltage across the inductor, which can affect the overall performance and stability of the circuit. It can also cause a delay in the current flow through the inductor, known as inductive reactance.
The amount of excess charge in an inductor can be calculated using the formula Q = LI, where Q is the excess charge, L is the self-inductance of the inductor, and I is the current flowing through the inductor. This formula is derived from the relationship between voltage and current in an inductor.
To manage excess charge in an inductor, it is important to minimize the effects of self-inductance. This can be done by using a core material with low magnetic permeability, keeping the inductor away from other magnetic fields, and using a higher frequency in the circuit. Additionally, adding a resistor in series with the inductor can help dissipate excess charge and prevent voltage spikes.