Two hollow uncharged conducting spheres hang by a thread from the ceiling as sho

Question

Two hollow uncharged conducting spheres hang by a thread from the ceiling as shown above. The spheres have the same mass but are different sizes. A charge +Q is deposited on the larger sphere. The spheres are then momentarily brought into contact and separated after which they move away from each other. Which of the following statements about the final state of the spheres and strings must be true? Select two answers. a. The Spheres have charges of opposite sign b. the sum of the charges on the Spheres is + Q c. the tension in the string is larger than it was initially d. the force exerted by the ceiling on each string is directed vertically upwards

Explanation / Answer

Ans C) The tension in the string is larger than it was initially as the string is being stretched.

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