Give two different properties of current carrying coil and state ampere's suggestion.

Explanation

1. We have shown that a current loop :
(1) Produces a magnetic field and behaves like a magnetic dipole at large distances.
(2) It is subject to torque like a magnetic needle.
2. This led Ampere to suggest that all magnetism is due to circulating currents.
3. This seems to be partly true and no magnetic monopoles have been seen so far.
4. However, elementary particles such as an electron or a proton also carry an intrinsic magnetic moment not accounted by circulating currents.