Hello,my Nam is Nobel in Nigeria.i have very little knowledge of circuit.i need help to make a helpful but simple project for my school for a competition.i want to be simple and cheap.

I the Name of GOD and Micheal faraday.somebody please help me!

Your question is not clear. We cannot answer questions, if we don't understand the question.

 

It seems you ask for a simple electric circuit. Something like this.

 

But I guess that's too simple?