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.
Home > Coniferous Forest Animals > North American Porcupine. The North American porcupine is the second largest rodent species found in North America. It is an herbivorous animal with pines, or quills, as they are called, all across their body, except the face, underbelly and limbs. North American Porcupine Range Map.