Place an iron rod inside a current-carrying coil of wire and you

Question

Quizplus · Accepted Answer

Placing an iron rod inside a current-carrying coil of wire increases the strength of the electromagnet. This is because iron is a ferromagnetic material, which means it can be magnetized easily when exposed to a magnetic field. The iron rod becomes magnetized and reinforces the magnetic field produced by the coil, increasing the strength of the overall electromagnet. Choice B is not applicable as superconducting magnets are made with materials that do not have any electrical resistance, not with iron rods. Choice C is not relevant as it is not related to the use of iron rods in a current-carrying coil.

Place an Iron Rod Inside a Current-Carrying Coil of Wire