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Ohm's law. Current is directly proportional to the applied emf and inversely proportional to the resistance in the circuit.
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What are some ways to increase the magnetic field around a wire?
There's only one way to do that: Increase the current (amperes) in the wire.
Does increasing current on a wire increase the magnetic force acting on it?
Only if the wire is running perpendicular to a magnetic field.
Relationship between the length of wire and its electric current?
The electrons in a conducting wire are loose and can move freely. When the circuit is closed, a potential difference is set up across the terminals. The battery maintains this potential difference. Then the electrons in the wire move towards the positive terminal of the battery. This flow of electrons constitute the electric current.
Does earthing wire carry current?
The earthing wire does not normally carry current.
Does thin wire carry more current than thick wire?
No. The larger wire can carry more current.
What happens to the current carrying ability of a wire when the temperature increases?
the current will increase
When a wire is made smaller the resistance increases. what happens to electric current?
increase
What are some ways to increase the magnetic field around a wire?
There's only one way to do that: Increase the current (amperes) in the wire.
When you loop the wire with a current it will?
increase the strenght of the magnetic field. :)
Two ways to increase the strength of an electromagnet?
-- Increase the current (amperes) flowing through the coil of wire that surrounds the electromagnet. -- Increase the number of 'turns' of wire in the coil.
How could you make your electromagnet stronger?
there are 3 ways,*changing the number of coils of wire,*changing the current in the wire,*changing the material used for the core.sidenote - i just saw this answer and its perfect, really. simple and just the three points i needed for homework!how could you make them stronger
When a wire is smaller the resistance increases What happens to the electrical current?
increase
What happens to the magnetic field if the current in the wire increases?
If the current in the wire increases, the magnetic field also increases.
If You wrap a wire around a piece of iron. If you slowly increase the strength of an electric current flowing through the wire you would expect .?
The temperature of the wire will increase and eventually like the "straw breaking the camel's back" the wire will fail if you apply enough current. It is like exceeding the current in a fuse, the wire essentially disintegrates.
Does increasing current on a wire increase the magnetic force acting on it?
Only if the wire is running perpendicular to a magnetic field.
What happens to the electric current when the wire is made smaller?
If wire delivering a certain amount of current is made narrower, the resistance of the wire will increase. This will limit current, and the wire will warm up some. If the wire is made shorter, resistance will decrease. The electrical codes have well published limits on the amount of current different types of wire can carry.
How do you increase the magnetic field in a coil?
Magnetism requires mass of some sort. Smaller magnet, smaller field. I would think that the same holds true with the wire. In the field of electromagnetism you will be dealing with a power requirement to achieve desired strength of field. So, to give you my best answer to your question is to increase the electrical input. If the wire is already magnetic, get a thicker diameter magnetic wire.
