Recent content by Alieneater

Homework Statement The science fair is coming and I am nervous at what kind of questions the judges are going to ask. Can you guys ask me some questions you think they might ask? I am basically done with my science fair project about which factor affects the strength of an electromagnet...

This is great advice. Any other suggestions?

Homework Statement For an electromagnet that is just made up of wires and a core, what power supply can I use other than batteries that let me adjust the volts? Can you explian in detail? Homework Equations none The Attempt at a Solution I have already looked on the...

Can you give more details. I am kind of dumb. Where can I get it and for how much?

Homework Statement What is something other than a battery that I can use for an electromagnet that won't lose power and you can pick how many volts you want. Homework Equationsnone The Attempt at a Solutionnone

Why won't anyone help me!

What I want is a power source other than batteries that won't run out of energy because once the batteries lose power, my results will be wrong.

Homework Statement What can I purchase so that I have a constant voltage that is cheap for my electromagnet and you can adjust to how many volts I want? Batteries will run out of power and not give good results. Also is there another easy way to precisely meaure the strength of the...

Desperate for help! Homework Statement I am doing an electromagnet project. I am a bit lazy and was asking if you guys could give me a list of ALL the materials I need to compete in the science fair. I'm in 10th grade, and my question is which factor affects strength of electromagnet the...

Homework Statement The Science fair is only a week away, and i haven't really started my project. It is which factor affects the strength of an electromagnet the most. The factors I am using so far are number of coils, diameter of core, thickness of wire, and voltage of power source. I...

Homework Statement I am the the 10th grade science fair, and my project is over electromagnets. It is which of the following factors affects the strength of an electromagnet the most. I then use some like voltage of power source, diameter of core, thickness of wire, and # of coils...

I believe that the number of coils will affect its strength the most. I haven't had anything go wrong yet so I would llike to know what feedback loops might I try because I need 2.

I mean a feedback loop. The feedback loop is in the need to go back to the "Asking a Question" stage should the experiment stage not support the answer stage (Hypothesis).

Homework Statement I need to get 2 major loops in my method or hypthesis. My experiment is which of the following factors affects strength of electromagnet the most: number of coils, the voltage of the power source, the diameter of the core, or the thickness of the wire. Can you...

Sorry if I am disturbing you guys, but do you have other suggestions? I like Delphi51's idea of finding the quantitative effect of each and FightFish's idea of the empircal relation, but can you guys explain these ideas more clearly because I am not that smart? I would greatly appreciate it...