The primary origin(s) of magnetism lies in

Options

A. atomic current and intrinsic spin of electrons-
B. polar and non polar nature of molecules.
C. pauli exclusion principle.
D. electronegative nature of materials.

Explanation

To solve the question regarding the primary origin(s) of magnetism, we will analyze the concepts related to atomic structure and the behavior of electrons.

### Step-by-Step Solution:

1. **Understanding Atomic Structure**:
- An atom consists of a nucleus (made up of protons and neutrons) and electrons that revolve around the nucleus in specific orbits.

2. **Electron Motion**:
- Electrons not only revolve around the nucleus in circular paths but also spin around their own axes. This dual motion is crucial in understanding magnetism.

3. **Current Generation**:
- When electrons move in their orbits, they create a circular flow of charge, which can be considered as an electric current. This is often referred to as "atomic current."

4. **Magnetic Field Generation**:
- According to electromagnetic theory, a flow of electric current generates a magnetic field. Therefore, the atomic current produced by the motion of electrons contributes to the generation of a magnetic field.

5. **Intrinsic Spin of Electrons**:
- Besides the orbital motion, electrons have an intrinsic property known as "spin." This spin also contributes to the magnetic moment of the atom, further enhancing its magnetic properties.

6. **Conclusion**:
- The primary origins of magnetism can be attributed to the atomic current generated by the motion of electrons around the nucleus and their intrinsic spin. Thus, both factors are essential in explaining the magnetism observed in materials.

### Final Answer:
The primary origin(s) of magnetism lies in the atomic current generated by the motion of electrons around the nucleus and the intrinsic spin of the electrons.

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