Question

Which best contrasts the weak force and the electromagnetic force??

Answer 1

 Electromagnetic Force
This is the force which exists between all particles which have an electric charge. For example, electrons (negative charge) bind with nucleus of an atom, due to the presence of protons (positive charge). The force is long range, in principle extending over infinite distance. 

The Weak Force This force is responsible for nuclear beta decay and other similar decay processes involving fundamental particles. The range of this force is smaller than 1 fm and is 10-7 weaker than the strong force.

Both of the forces are in wave form

Answer 2

Answer:

The range and the strength

Explanation:

The electromagnetic force is the force that acts between objects with electrical charge, while the weak force is the force responsible for the decay of some particles.

While the electromagnetic force has an infinite range, the weak force has an extremely small range, approximately $10^{-18} m$.

Another important difference between the two forces is their relative force: while the electromagnetic interaction is the strongest of all four forces (relative strength: 1), the weak interaction is much more weak (relative strength compared to the electromagnetic force: $10^{-6}$, so it is $10^6$ times weaker than the electromagnetic force.