The strength of an electromagnet cannot be increased by increasing current in the coil. increasing the number of turns in the coil. reversing polarity of the battery. using core of larger cross-section.

Question

Chaya Proctor · Accepted Answer

An electromagnet&#039;s strength is influenced by a number of factors, including the coil&#039;s current, number of turns, and core cross-section. An electromagnet&#039;s strength can also be improved by utilizing a core with a bigger cross-section. However, reversing the battery&#039;s polarity will just flip the electromagnet&#039;s poles. It won&#039;t have any effect on how powerful the electromagnet is.