How will the modulus of the force of interaction of two stationary point charges in air change if the distance

| January 12, 2021 | education

How will the modulus of the force of interaction of two stationary point charges in air change if the distance between it is doubled? if at the same distance between them one of them is increased by 4 times?

To solve the problem, we will use the formula for the force of interaction of point charges, where F is the force, q1 and q2 are the forces of the charges, and r is the distance between the charges.
Since we divide by r according to the formula, the force will decrease with increasing distance. We calculate by the formula and we find that the force has decreased by 4 times. In the second question, they increase the charge, because the charge in the formula is located in the numerator, which means the strength increases. Let’s carry out calculations, we get that the force has increased 4 times.



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