When an inflated balloon rubbed against a woollen sweater is brought near a slow trickle of tap water, the…

When an inflated balloon rubbed against a woollen sweater is brought near a slow trickle of tap water, the water stream curves toward the balloon. Why does this happen?
  1. The balloon exerts an electrostatic attraction on the uncharged water stream.
  2. Frictional force between air and water pushes the water sideways.
  3. The sweater turns the balloon into a temporary magnet.
  4. Gravity stops acting on the water near the balloon.

Solution

A charged object attracts uncharged light objects (like thin streams of water) through electrostatic induction.

Asked in: Homi Bhabha Practice

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