Answer to Question #125974 in Physics for Susan Williams

Question

With the help of a diagram explain what is meant by forward-bias as applied to a p-n-junction diode 

Answer 1

If we connect a p-type of the p-n junction to a positive terminal of a voltage source and n-type side to a negative terminal, we will obtain the forward bias:

What does it mean? Since the charges of the same sign repel, the place where "+" and "-" meet somewhere in the middle will be the most populated, which will result in a higher conductivity and higher current in the diode.