You are given a certain volume of copper from which you can make copper wire. to insulate the wire, you can have as much enamel as you like. you will use the wire to make a tightly wound solenoid 20 cm long having the greatest possible magnetic field at the center and using a power supply that can deliver a current of 5 a. the solenoid can be wrapped with wire in one or more layers. a) should you make the wire long and thin or shorter andthick? explain.
would it be shorter and thick because b= μ0ni is tha magnetic field at the center (n=n/l)so if you wrap it a greater number of time and have a shorterlenght the b would be greater?
b) should you make the solenoid radius small or large? explain.
radius small b/c using same equationn=n/2πr so a smaller r the greater n and the greaterb

When temperature of a substance increases, of its particles increase resulting in more between particles. real world applications of thermal expansion absolute zero (-273 degrees c) is the lowest possible temperature on the kelvin scale. it is a measure of where a substance has no kinetic energy. heat is a process of the . energy flows spontaneously from a object to a until equilibrium is reached. heat is measured in heat is transferred throughis a method of heat transfer that occurs between particles of matter that are in direct contact with each other. are poor conductors that impede / reduce the rate of heat transfer. is a method of heat transfer that occurs in fluids (non-solids) by means of currents. real world application of convectiona method of heat transfer through electromagnetic waves. when energy moves from one object to another inside a closed system, no energy is or in the system in the transaction. systems will spontaneously move to a state of organized energy or high disorder over time called