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I think that’s implied by his pointing out that capacitors use vacuum. A cap that doesn’t allow electron flow wouldn’t be a cap.
by arkades 8y ago
I think that’s implied by his pointing out that capacitors use vacuum. A cap that doesn’t allow electron flow wouldn’t be a cap.
- Wehrdo 8y agoA capacitor shouldn't allow electron flow between its (dielectric separated) plates. The charges should build up on the plates, then exit through the terminals when discharging. If charges cross the dielectric, then you have leakage.
- arkades 8y agoHm. Apparently my Phys101-level understanding of electronics has caught up to me.
- ben_w 8y agoCaps don’t allow electrons through, do they? They resist DC, they only conduct AC?
- 0db532a0 8y agoThat is correct. The dielectric ‘conducts’ an electric field, which attracts and repels electrons on the opposing plates.