The bob of a simple pendulum has a mass of 2 g and a charge of 5.0
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Question:
The bob of a simple pendulum has a mass of 2 g and a charge of 5.0 C. It is at rest in a uniform horizontal electric field of intensity 2000 V m–1. At equilibrium, the angle that the pendulum makes with the vertical is (take g = 10 m s–2)
(a) tan–1 (0.2)
(b) tan–1 (0.5)
(c) tan–1 (2.0)
(d) tan–1 (5.0)
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