Use the diagram below for the next problem:
-The diagram shows the current versus voltage for a diode.The region which has the highest resistance is
A)I
B)II
C)III
D)IV
E)II and III

Question

Use the diagram below for the next problem: 
-The diagram shows the current versus voltage for a diode.The region which has the highest resistance is
A)I 
B)II 
C)III 
D)IV 
E)II and III

Quizplus · Accepted Answer

Region II represents the reverse bias region of the diode where the current flows in the opposite direction to the arrow symbol. In this region, the diode offers the highest resistance as the current is almost zero for a range of voltages. In contrast, regions I and IV represent forward bias regions where the current flows easily through the diode, and therefore have lower resistance. Region III represents the breakdown region of the diode where the voltage increases sharply with a small change in current, indicating a sudden increase in conductivity and a decrease in resistance.

Use the Diagram Below for the Next Problem