What Determines the Magnetic Field Orientation in a P Type Semiconductor Coil?

[crx]

P type semiconductor coil...

The magnetic field orientation in a P type semiconductor wire, in which a DC current is flowing will be caused by the direction of movement of the electrons or the positive holes?

 

[marcusl]

Is this a homework problem? If so please show your attempt at a solution.

 

[crx]

Is this a homework problem? If so please show your attempt at a solution.

no it is not a homework problem...i would say the magnetic field orientation is given by the electron movement, but i need an exact answer and not opinions...thanks

 

[marcusl]

The answer is--it doesn't matter. If holes flow from left to right, the current flow is said to be in the same direction. A current in that direction corresponds to electrons flowing from right to left. It is the direction of current flow that matters, the carriers will sort themselves out.

 

[crx]

The answer is--it doesn't matter. If holes flow from left to right, the current flow is said to be in the same direction. A current in that direction corresponds to electrons flowing from right to left. It is the direction of current flow that matters, the carriers will sort themselves out.

Thank you Marcus , but this was an opinion...Considering the real direction of the electrons (negative charges), in a metallic wire conductor with the ends connected to a DC voltage, the magnetic field orientation will correspond to the "right hand grip rule". Now if we replace the metallic wire with a P type semiconductor wire (in which positive holes are the major carriers), the orientation of the B vector will be the same as the metallic wire or will be opposite?

 

[marcusl]

The voltage source drives a current in the same direction both times, regardless of the type of carriers involved. Therefore B is the same each time.