Courses
Courses for Kids
Free study material
Offline Centres
More

# In this I-V characteristic curve of a Zener diode, regions 1 and 2 respectively indicateA. forward bias and reverse bias regionsB. reverse bias and forward bias regionsC. forward bias regions onlyD. reverse bias regions only

Last updated date: 26th Feb 2024
Total views: 359.7k
Views today: 9.59k
Verified
359.7k+ views
Hint: A Zener diode is a diode which allows the current to flow in the opposite/backward direction when the reverse voltage is reached. Consider the behavior of Zener diodes in both forward and reverse biasing.

In the forward bias, the behavior of the Zener diode is ordinary like a silicon diode. In reverse bias, when the reverse bias voltage is greater than a particular voltage, the breakdown of the Zener voltage occurs, denoted by ${V_Z}$. The reverse current suddenly increases at a certain value of reverse voltage. According to this, we can conclude that region 1 represents the forward bias which is a normal behaviour and region 2 represents the reverse bias condition where the breakdown occurs.
Note: The breakdown voltage/Zener voltage remains almost constant, variations are negligible. The Zener diode can be used in another way. This constant voltage can be applied across a load. Remember the changes in ${V_Z}$ is negligible and ${V_Z}$ is not constant.