The force between two charges is 120n.If the distance between the charges is double. the force will be
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- The electrostatic force between two charges is directly proportional to the product of charges and inversely proportional to the square of distance between them.
- Let the distance between the charges be 'r'
F= kq₁q₂/r²
120 = kq₁q₂/r²
- Now we have to find the force when the distance is doubled.
Let the new force be F'
F' = kq₁q₂/(2r)²
= kq₁q₂/4r²
- So, when the distance is doubled the force gets 1/4 times the initial force.
F' = 120/4
=30 N.
The new force will be 30 N.
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Answer:
1. Coulomb's law states the force between two charged particles is directly proportional to the product of charges
2. And inversely proportional to the square of the distance between them.
3. So if the distance is doubled then the force would decrease 4 times.
4. So the new force would be 120/4=30 Newton.
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