| Assertion (A): When diode is used as a rectifier, its specified reverse breakdown voltage should not be exceeded. |
| Reason (R): When p-n junction diode crosses the reverse break down voltage, it get destroyed. |
A) Both A and R are true and R is the correct explanation of A
B) Both A and R are true but R is NOT the correct explanation of A
C) A is true but R is false
D) A is false and R is true
Correct Answer: A
Solution :
| Option [a] is correct |
| Explanation: When a diode is used as a rectifier, it has to face both positive and negative halves of the alternating voltage. |
| Care is taken so that the amplitude of the negative half cycle of the alternating voltage should not be more than the specified reverse breakdown voltage of the diode. So the assertion is true. |
| Reverse break down voltage of normal p-n junction diodes used as a rectifier is high. If reverse voltage exceeds this specified break down voltage, then the diode gets permanently damaged. So, the reason is also true and explains the assertion. |
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