A bob of simple pendulum has mass 2g and a charge 5μc . It is at rest in a uniform horizontal electric field of intensity2000 V/m. At equilibrium, the angle that the pendulum makes with the vertical is
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A bob of simple pendulum has mass 2g and a charge 5μc . It is at rest in a uniform horizontal electric field of intensity2000 V/m. At equilibrium, the angle that the pendulum makes with the vertical is