What is Forward Bias and Reverse Bias in Physics

Forward Bias and Reverse Bias

 

Forward Biased:

 

If the p-type material of a semi conductor diode is at a positive potential and the n-type material is at a negative potential then the diode is forward biased. It has a very low electrical resistance.

 

Reverse Biased:

 

If the p-type material of a semi-conductor diode is at a negative potential and the n-type material is at a positive potential then the diode is reverse biased. It has a very high electrical resistance.

 

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