Two similar charges each of one coulomb placed in air one meter apart repel each other with a force
Correct answer: A. 9x I0⁹N
- A. 9x I0⁹N
- B. 9.2x I0⁴N
- C. 9x I08N
- D. 9x I0⁷
Explanation
Force due to two charge is F=Kq1q2/r2. Where r is the distance between the charges and q1 and q2 are the magnitude of the charges. K is Coulombs constant who's value is 9x I09Nm2/C2.So, the force is F= K(1)(1)/(1)2 = 9x I09NN
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Electrostatics describes forces between charges through Coulomb's law, electric fields and field intensity, then uses electric potential to measure energy per unit charge. Capacitors store charge and electrical energy, with capacitance depending on geometry and dielectric material, not simply on the amount of charge present.
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