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C = εr ε0 (A/d) This demo shows capacitive coupling using water as a variable dielectric (εᵣ ≈ 80). The human body completes the circuit by touching the water, acting as the second conductor with its capacitance to ground. Hand/finger movement changes the effective area A and distance d,... show more
47,149 次观看 • 2 个月前 •via X (Twitter)
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