Magnetic field between 2 parallel wires

[necromanzer52]

Homework Statement

I have 2 infinitely long parallel wires each carrying a charge of 1 amp in the same direction, and I have to find the magnetic field at a specific point in between them, and I know the distance to it from each of them.

Homework Equations

This is what I'd like to know.

The Attempt at a Solution

I've searched through various books, & websites, and I can't find anything about the magnetic field at a point between them. Only at one of the wires. I basically just want to know what equation I have to use.

 

[Jimmy Snyder]

What is the formula given for the magnetic field at one of the wires?

 

[necromanzer52]

((u)(I))/(2(pi)(d))

Where u is a constant, I is the current, and d is the distance between the wires.

 

[technician]

The equation you have given:

B = μI/2∏d is the magnetic field strength at a distance d from a SINGLE wire.

If 2 wires have current flowing in the SAME direction then the magnetic fields between the wires are in OPPOSITE directions... Can you take it from here ??

 

[Jimmy Snyder]

((u)(I))/(2(pi)(d))

Where u is a constant, I is the current, and d is the distance between the wires.

This is not a formula for the magnetic field "at one of the wires" as you indicated. It is the formula for the magnetic field at a distance d from the wire. This is the formula you need. The point you are interested in is at a distance d1 from one of the wires and at a possibly different distance d2 from the other wire. Calculate the two magnetic fields and then add them together. Remember that the magnetic field is a vector, so you will need to do a vector addition, not simpy add the numbers together. technician has given you a good hint in that regard.

 

[technician]

Thank you Jimmy... I wish that I had used the term 'vector'... more general than what I said

 

[necromanzer52]

Ah thank you. It appears my physics books, and the internet are conspiring against me.