A neutral pith ball is suspended from an apparatus using a massless string. A positively charged metal sphere on a stand is then brought near the pith ball, causing the suspended ball to move towards it. When the ball comes to rest again, the angle of deflection is 0. Assume the charged sphere and pith ball ar level with one another. Net + vention: A ball

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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.