Lenght, diameter and material of the conductor.
A magnetic field, a conductor and movement.
three things required for electromagnet are hands eyes ears have fun! lol
Everything conducts heat and electricity (if the voltage is high enough). Some things do it well, some things do it poorly. Sugar is one of those things that does it poorly. Actually not every thing conducts electricity such as rubber even if at high voltage
A difference of potential (voltage) and a conductor connected to the voltage source will cause current flow. Not that you'd want to "short out" a voltage source with a piece of wire, but just the source of voltage and the conductor would permit current to flow. If you took a piece of wire and touched it to the terminals of a good battery, current would flow. It takes just those two things to create a current.
If a wire - or in fact, any conductor - moves in a magnetic field, a voltage will be induced in the wire or conductor. To actually get electricity for something useful, quite a few additional things are required. Do some reading about generators, to see how they are built.
The material from which the conductor is made, the length of the conductor, the diameter of the conductor and the temperature of the conductor are all things that impact its resistance.
If an electrical current passes through a conductor, there is an induced voltage (because no conductor has perfectly zero ohms), resulting in power dissipation, and there is a magnetic field, which can interact with other conductors in the vicinity of the first.
Three things you need to make an electromagnetic are a magnetic field, an electric current, and a conductor or coil of wire. When an electric current flows through the conductor, a magnetic field is created around it, resulting in an electromagnetic effect.
Orchestra conductor, because our brain is doing so many things at once. (An orchestra conductor does many things at once).
a paperclip
High voltage power lines are targeted at the cause of many bad things, but the truth is (in most cases) they have a negligible impact on the bad things they are accused of causing. Emotional problems is a case in point. The weather has more of an effect.
It is a conductor of electricity ,