Question

4.2.4 quiz: electromagnetism
question 2 of 10
which factor has the least effect on the strength of an electromagnet?
a. the length of the connecting wires
b. the strength of the battery
c. the number of coils of wire
d. the material of the core

Explanation:

The strength of an electromagnet is mainly affected by factors like the number of wire coils (more coils increase strength), the strength of the battery (higher voltage means more current, increasing strength), and the material of the core (ferromagnetic materials enhance strength). The length of connecting wires has a negligible impact as long as the circuit is complete.

Answer:

A. The length of the connecting wires