A small plastic ball of mass 5.63 × 10^-3 kg and charge +0.129 C is suspended from an insulating thread and hangs between the plates of a capacitor (see the drawing). The ball is in equilibrium, with the thread making an angle of 30.0° with respect to the vertical. The area of each plate is 0.01785 m^2. What is the magnitude of the charge on each plate?
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63 \times 10^{-3} \, \text{kg}\), \(g = 9.8 \, \text{m/s}^2\), and \(\theta = 30^\circ\). Show more…
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