Which of the following did not get attracted to the paper pieces?
1.Glass rod
2.Plastic scale
3.Comb
4.Steel spoon
Answers
The glass rod did not get attracted to the paper pieces and it is made with the smooth and light weight which never get affected the paper to make use.
Hence if it is right choice to make over the paper for the different reason with no risk and trouble of it.
Answer ⇒ Option (1). Glass Rod.
Explanation ⇒ Glass Rod does not posses the Charges thus, it will not get attracted. When we will rub the Glass Rod with the Paper Pieces, it will not posses the charge. Thus, It will not attracted towards it.
Also, Glass rod will have the more mass, which cannot be attracted towards paper pieces.
On the Other hand, If we will rub the paper pieces, with the Plastic comb, it will develop the charges, which will cause, the attraction between the paper pieces and comb.
Similarly, There will be a Little Attraction between the Paper pieces and the Steel Spoon due to the development of the Charges.
The Force of the attraction between the charges is given by the Formula,
F = kq₁q₂/r²
Hope it helps .