Question: Charge the yellow balloon rubbing on the sweater as such that it acquires 10 electrons. Charge the green balloon so that it has 25 electrons.

Charge the yellow balloon rubbing on the sweater as such that it acquires 10 electrons. Charge the green balloon so that it has 25 electrons. 

  1. Calculate the net force exerted on the green balloon if it is midway between the sweater and the yellow balloon. Consider that the sweater and the yellow balloon are about 10 cm apart. Show your detailed calculations. 
  2. Now having the green balloon sticking to the wall, release the yellow balloon midway between the sweater and the green balloon. What change in effect do you see as opposed to releasing the green balloon? 
  3. Calculate the net force exerted on the yellow balloon if it is midway between the sweater and the green balloon. Consider that the sweater and the green balloon are about 10 cm apart. Show your detailed calculations.
  4. Comment on the force calculated on each of the yellow and green balloons. Does it satisfy your expectation according to the Coulomb’s law?

 

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