Problem #0017 Electricity & Magnetism Sub-menu Problem #0019 Chapters Chapters

288.

Problem 27.27 (RHK)

A neutron is thought to be composed of one “up” quark of charge and two “down” quarks each having charge . If the down quarks are apart inside the neutron, we have to calculate the repulsive electrical force between them.

Solution:             Click For PDF Version

Charge of a down-quark is where .

It is given that the separation between the two down-quarks inside a neutron is . Therefore, the magnitude of the force of repulsion between the two down-quarks inside a neutron will be