InterviewSolution
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InterviewSolution
| 1. |
State Coulomb\'s law of force between two electric charges |
| Answer» \xa0Coulomb\'s law in electrostatic states that a charge at rest\xa0q1\u200b\xa0applies a force\xa0F\xa0on the other charge\xa0q2\u200b, also at rest, which are separated by a distance\xa0r\xa0such that the force is directly proportional to the product of both charges and inversely proportional to the square of the distance between them.∴\xa0F∝ q1\u200bq2\u200b\xa0and\xa0F ∝ 1/ r21Thus we get\xa0F ∝ q1\u200bq2\u200b\u200b/r2⟹\xa0F = kq1\u200bq2\u200b\u200b/r2\xa0where\xa0k= 1/4πϵo\u200b\u200b\xa0 | |