Discussion Overview
The discussion focuses on methods to measure the voltage of a Kelvin Water Dropper, particularly in the context of high voltage and low charge. Participants explore various techniques, including measuring by influence and using electric fields, while addressing the challenges posed by the specific characteristics of the device.
Discussion Character
- Exploratory
- Technical explanation
- Debate/contested
Main Points Raised
- One participant suggests measuring voltage by influence due to the high voltage and low charge of the Kelvin Water Dropper.
- Another participant proposes several methods, including building an electroscope, using an electro field meter, and measuring force between capacitor plates.
- A different approach involves constructing a generating voltmeter that uses a rotating fan to alternately cover and uncover capacitor plates, which could provide a proportional AC signal to a high impedance meter.
- There is a question raised about the applicability of the generating voltmeter method for Van de Graaff generators, which produce DC power.
- A response clarifies that the rotating fan method can produce an AC signal through capacitive coupling, despite the DC nature of the voltage source.
Areas of Agreement / Disagreement
Participants present multiple competing views on the methods for measuring voltage, and the discussion remains unresolved regarding the effectiveness and applicability of the proposed techniques.
Contextual Notes
Some methods proposed depend on specific configurations and assumptions about the devices used, and there are unresolved questions about the nature of the signals produced by different measurement techniques.