Thermal effect refers to the heat released or absorbed by object in changing process at a certain temperature. In this process, stress inside material will change. produced when temperature changes, because of external constraints and internal between various parts, so that it can not completely free expansion contraction.

This paper deals with an efficient and fast approach for determining the mutual inductance between coaxial circular coils of rectangular cross section in combination with thin coaxial circular coils as the thin wall solenoid, the thin disk coil and the filamentary coil. This approach is based on the filament method where conductors are approximated by the set of Maxwell’s coils. The obtained ex...