1. Compare and contrast open and closed systems.

1-4 sentences

a closed system is when everything throughout your system is closed and connected. meaning that electricity can flow though without being interrupted or stopped. And open system is when there is a gap in the line somehwrre and not connected. meaning that electricity cant go though completly becuase there is a spot in the system where it's open and being stopped. (kinda like if you were on a bridge but theres a huge hole in it so you can go to the other side)

the answer is ampere

the ampere is used to measure electricity. an ampere is a unit of electric current equal. a unit of measure for the flow of current in a circuit. one ampere is the amount of current flow provided when one volt of electrical pressure is applied against one ohm of resistance.