Physics 12  Mid-Year Review


2. The diagram below shows two small spheres, each of mass 2.2 x 10-5 kg, suspended from point P by light threads 35 cm in length. There is a uniform electric field directed to the right. The charge on the right sphere is 3.2 x 10-9 C and the charge on the left sphere is -3.2 x 10-9 C. What is the magnitude of the electric field? (10 marks)

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