# Questions tagged [capacitance]

The ability of an object to store electric charge.

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### Resonance frequency with metal

I've made an experiment with resonance frequency of a LC circuit. One part was to place a metal (I think iron) in the middle of the induktivity of LC circuit. I measured a higher resonance frequncy as ...
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### Change in distribution of charge on plates of capacitor on earthing one plate

If we consider the following situation: Now the capacitors are already charged so the potential difference between the plates is well defined but the absolute potential isn't. So what will happen if ...
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### Liquid rising in a capacitor

Consider a parallel plate capacitor is placed in such a way that the plates are horizontal and the lower plate is dipped in liquid which has a dielectric constant k the plates are connected to battery....
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### Circuit representation of internal capacitor resistance

In the circuit representation of a capacitor, why is the internal resistance of the capacitor, caused by the dielectric medium between its plates, taken to be parallel to it?
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### What is the time constant of RLC circuits

I am trying to understand how to analyze and understand the $RLC$ circuit. I know that in $RL$ and $RC$ circuits there is time constant $\tau$ wich determine how long it will take to $I_{(t)}$ decress ...
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### Magnetic field and permeability of a capacitor

As shown in this document, the magnetic field of a parallel plate capacitor with a permeability equal to that of free space is shown with equation (18). If a capacitor has a permeability higher than ...
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### RLC - CLR - RCL Transfer function

I have problem because I don’t understand the difference between CLR RLC and LCR, they are the same no ? They have the same composant just placed in different ways, I did already found the Transfer ...
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### Heat dissipated on switching the wire?

$C$ and $C_0$ are the capacitance of the capacitors. The wire marked with an arrowhead is to be switched from point 1 to 2. Resistance of wires is very very less (~0). Leaking of charge does not occur....
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### What is the charge stored by the capacitor?

I learnt that for an uncharged capacitor of capacitance $C$ connected with battery voltage $V$, the energy stored by capacitor is equal to $\frac{1}{2}CV^2$. But in this example for the capacitor ...
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### Is the EM wave around a capacitor a standing wave or a traveling wave when AC current flows into that capacitor?

Please, check the following pdf file. http://web.mit.edu/8.02t/www/802TEAL3D/visualizations/coursenotes/modules/guide13.pdf It looks like that the two conductors of Fig.13.4.6 is just capacitor ...
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### Are those two capacitors in parallel?

I'm trying to analyze the following situation: we have a parallel plate capacitor where the plates are both squares with side length $l$ and on the positively charged plate we have a charge $Q$, ...
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### Is electric potential of the grounded conductor of a capacitor always zero?

In a spherical capacitor, the net electric potential on the outer grounded conductor due to the positive charge on the inner conductor and the negative charge on the outer conductor is always zero. Is ...
We know that $C=q/U$. We know that the voltage is the potential difference between the plates. If we have a capacitor on which we apply voltage, the one plate charges up and induces the other one with ...