Question Part Points Submissions Used (a) Two point charges totaling 7.50 µC exe
ID: 1594025 • Letter: Q
Question
Question Part Points Submissions Used (a) Two point charges totaling 7.50 µC exert a repulsive force of 0.100 N on one another when separated by 0.811 m. What is the charge on each?
smallest charge
µC
largest charge
µC
(b) What is the charge on each if the force is attractive?
smallest charge
µC
largest charge
µC
Question Part Points Submissions Used (a) Two point charges totaling 7.50 µC exert a repulsive force of 0.100 N on one another when separated by 0.811 m. What is the charge on each?
smallest charge
µC
largest charge
µC
(b) What is the charge on each if the force is attractive?
smallest charge
µC
largest charge
µC
Question Part Points Submissions Used (a) Two point charges totaling 7.50 µC exert a repulsive force of 0.100 N on one another when separated by 0.811 m. What is the charge on each?
smallest charge
µC
largest charge
µC
(b) What is the charge on each if the force is attractive?
smallest charge
µC
largest charge
µC
smallest charge
µC
largest charge
µC
(b) What is the charge on each if the force is attractive?
smallest charge
µC
largest charge
µC
smallest charge
µC
largest charge
µC
(b) What is the charge on each if the force is attractive?
smallest charge
µC
largest charge
µC
Explanation / Answer
a) Here, 8.98*109 *Q1 *Q2/0.8112 = 0.1
=> Q1 *Q2 = 7.32 *10-12
Also, Q1 + Q2 = 7.50 *10-6
=> Q1 = 6.35 µC and Q2 = 1.15 µC
=> smallest charge = 1.15 µC
=> largest charge = 6.35 µC
b) Here, 8.98*109 *Q1 *Q2/0.8112 = - 0.1
=> Q1 *Q2 = - 7.32 *10-12
Also, Q1 + Q2 = 7.50 *10-6
=> Q1 = 8.375 µC and Q2 = - 0.875 µC
=> smallest charge = - 0.875 µC
=> largest charge = 8.375 µC