All Questions
23
questions
1
vote
1
answer
163
views
How increased current carrying capacity / ampacity affects wire gauge size [closed]
In selecting a suitable wire size for manufacturing:
If I have a material that has the same resistivity and density as Copper, but has a higher current carrying capacity / ampacity for the same ...
- 11
2
votes
2
answers
679
views
Discharging a capacitor
Suppose I have a charged capacitor, meaning there's a voltage (electric potential difference), say, $2V$, between its two plates. We don't know the electirc potential of the individual plates, right? ...
- 205
2
votes
1
answer
87
views
Why there cannot be induction current between plates of capacitor while discharging?
If a capacitor gets charged by induction through the plates, then why there is no induction current between them while discharging instead of displacement current ?
- 137
0
votes
1
answer
148
views
charge on the capacitors
When we connecting a capacitor to a battery of $V$ volts. After it is completely charged, it is disconnected from the battery, and if we connected to another capacitor. In this case, there is no ...
- 23
0
votes
1
answer
5k
views
How does a bulb light up when it's connected in a circuit with an uncharged capacitor and a cell?
Since there is a capacitor, isn't it an incomplete circuit? How does the current flow across the dielectric medium? If a bulb was connected to a cell alone and if there was a break in the wires of the ...
0
votes
3
answers
370
views
(Capacitance of a battery?) Finding the charge accumulated on a rod
We all know the expression for the potential difference across a conducting rod moving through a region with a uniform magnetic field:
$\epsilon = B l v$
Now my question is different. Is it ...
- 138
0
votes
3
answers
5k
views
electron flow in capacitor with dielectric
if I make a circuit with a battery and a capacitor (with a dielectric inside),
how it is possible to get a current in the circuit? If electrons go from
one pole of the battery and they arrive to one ...
- 169
7
votes
2
answers
64k
views
Capacitor circuits with light bulb
Let's say we have a normal circuit with a light bulb, with wires and a battery.
When one places a capacitor in this circuit, how is the light bulb able to light up, even when the capacitor prevents ...
- 561