Question

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⇒What is Coulamb's law of electric force?
⇒Three point charges +q, -4q and +2q are placed at the vertices of equilateral triangle of side l as shown in the figure. Obtain the expression for the magnitude of the resultant electric force acting on the charge +q.Also find out the work done to separate the charges in order to move them up infinity.

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Answer 1

Answer:

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Coulomb's law states that: The magnitude of the electrostatic force of attraction or repulsion between two point charges is directly proportional to the product of the magnitudes of charges and inversely proportional to the square of the distance between them. The force is along the straight line joining them.