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in Gauss’s Law and its Applications by (61.1k points)

The pressure inside and outside the soap bubble is equal. The surface tension on the soap bubble is 0.04 N/m and the diameter of the bubble is 4 cm. Determine the charge on the soap bubble.

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Given, T = 0.04 N/m
Diameter = 4 cm = 4 × 10-2 m
∴ Radius r = 2 cm = 2 × 10-2 m
Charge q = ?

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