- #1
sanitykey
- 93
- 0
I wanted to find the dielectric constant of different materials placed in a parallel plate capacitor using the equation:
[tex]K = \frac{E_{dielectric}}{E_{original}}[/tex]
Where [tex]E = \frac{V}{d}[/tex]
I would use sensors connected to a computer to measure the voltage and i could easily measure the plate separation distance.
Would the original electric field strength be measured using the maximum voltage reached when the capacitor is attached to the battery? Or would i have to remove the battery before measuring this voltage?
When the dielectric is inserted I think that i have to remove the battery to measure the voltage difference, otherwise will the voltage will just be the same? If this is true will i get accurate readings? I mean the voltage won't decay unless i am actually discharging the capacitor right?
I'm just not sure if this will work especially since i was thinking of making the capacitor myself
[tex]K = \frac{E_{dielectric}}{E_{original}}[/tex]
Where [tex]E = \frac{V}{d}[/tex]
I would use sensors connected to a computer to measure the voltage and i could easily measure the plate separation distance.
Would the original electric field strength be measured using the maximum voltage reached when the capacitor is attached to the battery? Or would i have to remove the battery before measuring this voltage?
When the dielectric is inserted I think that i have to remove the battery to measure the voltage difference, otherwise will the voltage will just be the same? If this is true will i get accurate readings? I mean the voltage won't decay unless i am actually discharging the capacitor right?
I'm just not sure if this will work especially since i was thinking of making the capacitor myself