The repulsive force between two like charges of 1 coulomb each separated by a distance of 1 m in vacuum is equal to
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Given:
- Magnitude of charge = 1 C
- Distance if separation = 1 metre
To find:
- Electrostatic force of repulsion ?
Calculation:
As per Coulomb's Law of Electrostatic Force, we can say :
- (also called Coulomb's Constant) has a value of 9 × 10⁹.
- q refer to charges , and r refers to distance of separation.
- Putting necessary values in SI unit :
So, the forces of repulsion is 9 × 10⁹ Newton.
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