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.
The Porcupine Caribou herd is one of the largest migratory barren ground caribou herds in North America. The herd has gone up and down in size over time, but it has always been an important part of the ecology of the Western Arctic.