Malik built a simple electromagnet with copper wire, an iron bolt, and a 1.5-volt battery. The electromagnet was able to lift a paper clip from 3 centimeters away. Select three ways Malik can improve the strength of his electromagnet. a He can use a thicker piece of copper wire. b He can reverse the orientation of the battery. c He can replace the iron rod with a wooden rod. d He can replace the 1.5-volt battery with a battery of higher voltage. e He can use a longer piece of wire that wraps more times around the bolt.
Options a, d, and e are ways Malik can improve the strength of his electromagnet.
a) Using a thicker piece of copper wire will increase the conductivity of the wire, allowing more current to flow through and increasing the strength of the magnetic field.
d) A higher voltage battery will provide more energy to the electromagnet, resulting in a stronger magnetic field.
e) Using a longer piece of wire that wraps more times around the bolt will increase the number of coils in the electromagnet, adding to the strength of the magnetic field.