Question

In a Zener diode

• A. both P and N are lightly doped
• B. both P and N are heavily doped
• C. P is heavily doped and N is lightly doped
• D. P is lightly doped and N is heavily doped

Answer 1

The correct option is B both P and N are heavily doped

In a Zener diode both P and N are heavily doped so that the depletion region formed will be very thin and electric field at the junction will be very high.