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Balloon Pendulum An ebonite rod with a negative charge is brought near a small balloon suspended from a support by an insulated thread, as shown in the diagram. 4 Negatively Charged Rod Refer to the above diagram. If the charged ebonite rod touches the balloon and then returns to its original position, the balloon will now: Select one: O a. remain stationary O b. rise straight upward O c. swing towards the rod O d. swing away from the rod to search