Wrapping the copper wire around an iron nail, increasing the current.   Increase the power going through the wire or have more wire wrapped around the metal object. So in â¦ the case of a nail with wire wrapped around it, the more wraps you do the stronger the electromagnet will be.
Porcupines are a type of rodent found in two main regions of the world, so scientists group them into either Old World or New World porcupines.
Do porcupines do anything good? Although porcupines are most known for their quills, quills are only one of the... Who is the porcupine A porcupine is one of several rodents covered with stiff, sharp, spines or quills,...