Two identical email charged spheres are a certain distance apart, and each one i

Question

Two identical email charged spheres are a certain distance apart, and each one initially experiences an electronic force of magnitude F due to the other. If we ravine one thud of the original charge from each sphere, while keeping the distance between them unchanged, the magnitude of the electrostatic    force will be F/16 4F/9. 3F/4. F/9. When two point charges are a distance d part, the electric force that each one feels from the other has magnitude F. If the distance between the same two charges is changed to 2d/3, the magnitude of the electrostatic force will be 2F/3 3F/2 9F/Squareroot 2. 4F/9. You have a lightweight spring whose up stretched length is 4.00cm and whose spring constant is 90.00 N/m You attach, two small plastic beads to the opposite ends of the spring, lay the spring on a frictionless table. and give each plastic bead the same charge This stretches the spring to a total length of 6.00cm. What is the magnitude of the charge

Explanation / Answer

F= k(q1)(q2)/r2

one third of charge 1/3q1 , 1/3q2 now above equation becomes as

F= k(1/3q1)(1/3q2)/r2

k/r2 is constant

F= constant(1/9)(q1)(q2)

F/9= constant(q1)(q2)

So option (D) is the correct option

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