two small object are rubbed against each other using insulating handles and then kept of at a separation of 1m from each other in vacuum. both object were found to attract each other with force of 10N. assume that the force between the object is of electrical nature. calculate the number of electrons that were transferred from one object to another during the rubbing process?
Answers
Answered by
6
Step-by-step explanation:
Given two small object are rubbed against each other using insulating handles and then kept of at a separation of 1m from each other in vacuum. both object were found to attract each other with force of 10N. assume that the force between the object is of electrical nature. calculate the number of electrons that were transferred from one object to another during the rubbing process?
- Given force F = 10 N
- Also r = 1 m
- Since the objects are rubbed against each other, the charge on each sphere are equal.
- Now we have F = k q1 q 2 / r^2
- So F = k q^2 / r^2
- 10 = kq^2 / 1^2
- Or kq^2 = 10
- Or q^2 = 10 / k
- Or q^2 = 10 / 9 x 10^9 (k is constant of proportionality)
- Or q = √10 / 9 x 10^9
- Or q = 1 / 3 x 10,000
- Or q = 3.3 x 10^-5
- Now 1.6 x 10^-19 C carries 1 electron
- So 1 C will carry 1 / 1.6 x 10^-19
- Therefore 3.3 x 10^-5 C carries 1 / 1.6 x 10^-19 x 3.3 x 10^-5
- = 2.062 x 10^14
Reference link will be
https://brainly.in/question/17444080
Similar questions