Question

A student moves into a new house and notices that their doorbell is quieter than most. They decide to investigate. They know that the doorbell uses electromagnetism to work, but they want to know what factors affect the strength of an electromagnet. Select the three answers that would affect the strength of an electromagnet.

(3 points)

a. The amount that the electromagnet costs

b. The amount of wire wrapped around the rod

c. The amount of electricity running through the wire

d. The material the core is made of

e. The age of the rod

Answer 1

The three factors that would affect the strength of an electromagnet are:

b. The amount of wire wrapped around the rod
c. The amount of electricity running through the wire
d. The material the core is made of

These factors influence the strength of the magnetic field produced by the electromagnet.