Question

Which of the following is correct about magnetic monopoles?
A. Magnetic monopole exists
B. Magnetic monopole doesn’t exist
C. Magnetic monopole have constant value of monopole momentum
D. The monopole momentum increase due to increase at its distance from the field

Answer 1

Hint: There are electric dipoles of two opposite charges and it is possible to separate these two charges. Recall is it possible to separate the poles of the magnet. The magnet has two poles: South Pole and North Pole.

Complete answer:
As we know the magnetic monopole is a hypothetical term similar to an electric charge. We can observe the electric charge as one or an electric dipole with two opposite charges separated by a certain distance. Hypothetically, the magnetic monopole is similar to the electric charge particle like an electron.

In the case of magnets, as of now, no magnetic monopole is discovered. The magnet always has two poles: South Pole and North Pole. We know that the magnetic field lines originate from the North Pole and cease at the South Pole. The magnet always exists as a dipole, that is it has two poles irrespective of the shape of the magnet.

Even if we cut the magnet at atomic levels, we can observe it still has the two poles. Thus, separating the two poles is an impossible task. Since the magnetic monopole does not exist, they do not have monopole momentum. The electric charge has the angular momentum and not the magnetic monopole.

So, the only correct answer is option B.

Note:The electric dipole can be broken down by separating the two opposite charges but we can do this with a magnetic dipole. We cannot say that the magnet monopole does not exist; rather we have to say the magnetic monopoles are not observed yet. The universe is strange and the particle like Higgs Boson has made serious speculations about the universe.