Question

The resultant magnetic moment of the neon atom will be ?
A. Infinity
B. μ
C. Zero
D. μ/2

Answer 1

Hint: A magnet's magnetic moment interacts with an applied field to produce a mechanical moment. Recall the terms torque and the magnetic field. A vector quantity is a magnetic moment. Torque and magnetic moment are related in that torque is equal to the sum of the magnetic moment and magnetic field.

Complete step by step solution:
A magnetic dipole typically resembles an electric charge flowing around a loop and is a tiny magnet with atomic to subatomic dimensions. Magnetic dipoles include electrons moving on their axes, electrons circling atomic nuclei, and spinning positively charged atomic nuclei.

A specific sort of atom might not be a magnetic dipole if these effects combine and cancel. The atom is a magnetic dipole that lasts forever if they do not completely cancel. Iron atoms are these dipoles. A magnetic dipole is also produced when millions of iron atoms bound in the same configuration spontaneously form a ferromagnetic domain.

Examples of macroscopic magnetic dipoles include magnetic compass needles and magnetic bars. By making an angle of with the field direction, as indicated in the figure below, we can place a magnet bar (N-S) with the length 2l and the pole strength m in a uniform magnetic field of induction denoted as B.

Due to the magnetic field indicated by B, the first force (mB) acts on the North Pole in the direction of the magnetic field, and a second force (mB) acts on the South Pole in the direction that is the opposite of the magnetic field. These two new forces are oppositely polar and identical. As a result, it creates a couple. Since the neon molecule is diatomic, it has no net magnetic field.

Hence, option C is correct.

Note:The highest torque a magnet will experience in a unit external magnetic field is referred to as the magnetic moment's magnitude. Due to some torque the magnet experiences when it is placed in the external magnetic field, which is caused by the magnetic dipole, the magnet strives to align itself with the external magnetic field.