- #1
pinkyjoshi65
- 260
- 0
Hey, just wanted to check my method.
1)What is the distance between 2 protons experiencing a mutually repelling force of magnitude 4*10-11?
so for this, we have to use the formula for coulombs law--F=kq1q2/r^2
we know F and k. And q1=q2= 1.602*10-19. hence we can find r.
2)Two point charges, 4*10-5 C and -1.8*10-5 C are placed 24 cm apart. What is the force on a third small charge of -2.5*10-6 C, if it is placed on the line joining the other two midway between the originally given pair of charges.
For this what i did was:
Find Fq3q1. The force for this will be in the left direction.
then i found Fq3q2. Force for this will be in the right direction.
Then i found the sum of the forces, and that is the force on q3.
Note: q3 is in the middle of q1 and q2. distance between q3 and q1 is 0.12 m. the same is tru for the distance between q3 and q2.
Sounds right?
1)What is the distance between 2 protons experiencing a mutually repelling force of magnitude 4*10-11?
so for this, we have to use the formula for coulombs law--F=kq1q2/r^2
we know F and k. And q1=q2= 1.602*10-19. hence we can find r.
2)Two point charges, 4*10-5 C and -1.8*10-5 C are placed 24 cm apart. What is the force on a third small charge of -2.5*10-6 C, if it is placed on the line joining the other two midway between the originally given pair of charges.
For this what i did was:
Find Fq3q1. The force for this will be in the left direction.
then i found Fq3q2. Force for this will be in the right direction.
Then i found the sum of the forces, and that is the force on q3.
Note: q3 is in the middle of q1 and q2. distance between q3 and q1 is 0.12 m. the same is tru for the distance between q3 and q2.
Sounds right?