ON17 P11 Q31 Charged Sphere with Pulley Equilibrium | Oct/Nov 2017 | CIE A Level 9702 Physics

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9702/11/O/N/17: A small charged sphere of mass 0.80g hangs from a light thread inside a vertical uniform electric field of strength 2000 Vm–1. The thread passes over two frictionless pulleys and a mass of 2.00g hangs on the other end. The sphere is in equilibrium. What is the charge on the sphere?

What are the forces on a charged object in equilibrium? Dynamics with electric fields! #9702w17p11 #ASelectricfieldsP1 #ASforcesP1 #Lv3

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