Question

Which of the following is NOT true about a Zener diode?
A. It is used as a voltage regulator.
B. It is forward biased.
C. It is reversed biased.
D. It has a breakdown voltage.

Answer 1

The above problem can be resolved using the fundamentals of the Zener diode. The Zener diode is doped with the silicon and hence is the major silicon semiconductor. Moreover, the Zener diode acts as a voltage regulator when it blocks any magnitude of the current flowing through itself. For the maximum circuit value, the current in the Zener diode increases dramatically.

Complete step by step answer:
The Zener diode is one of the essential categories of the semiconductor, that tends to make the flow of current in the backward direction when the direction of the voltage supply voltage is maintained in the reversed order. Also, the Zener diode is doped heavily with silicon, and that's why it is that kind of semiconductor, that when it reaches the breakdown region, it starts behaving like a voltage regulator.
Therefore, the statement A, C and D are satisfying the above concept and the statement given is B is not satisfactory and option B is correct.

Note: To solve the given problem, one must be aware of the diodes. The diodes are the varieties of semiconductors that are formed employing semiconducting elements like silicon. These elements are doped in accordance with the nature of semiconductor required. Moreover, the Zener diode is one such kind of semiconductor that is used in the reverse breakdown mode, and at this mode, the voltage supply remains constant for a very large magnitude of the current.