P type semiconductor coil

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crx
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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?
 

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

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