The weak nuclear force appears only in certain nuclear processes such as the p-decay of a nucleus. In β-decay, the nucleus emits an electron and an uncharged particle called neutrino. The weak nuclear force is not as weak as the gravitational force, but much weaker than the strong nuclear and electromagnetic forces. The range of weak nuclear force is exceedingly small, of the order of 10-16m.
1.4.3 Strong Nuclear Force The strong nuclear force binds protons and neutrons in a nucleus. It is evident that without some attractive force, a nucleus will be unstable due to the electric repulsion between its protons. This attractive force cannot be gravitational since force of gravity is negligible compared to…
Coulomb's Law. If two stationary and point charges $latex \displaystyle Q{}_{1}$ and $latex \displaystyle Q{}_{2}$ are kept at a distance r, then it is found that force of attraction or repulsion between them is $latex \displaystyle F\propto \frac{Q{}_{1}Q{}_{{{2}_{{}}}}}{{{r}^{2}}}$ i.e., $latex \displaystyle F=\frac{kQ{}_{1}Q{}_{2}}{{{r}^{2}}}$ ; (k = Proportionality constant) (1) Dependence of…