The I-V characteristics of the given device show a typical breakdown region where the voltage remains fairly constant while the current increases. This characteristic is a signature of a Zener diode in its breakdown region, which is used as a voltage regulator.
Thus, the correct answer is Option (3).
Which of the following circuits represents a forward biased diode?
In the following circuit, the reading of the ammeter will be: (Take Zener breakdown voltage = 4 V)
The output voltage in the following circuit is (Consider ideal diode case):