Physics-(general)
NEET Physics (general) Assertion Reason Question
Type: Assertion Reason-assertion-Medium-Class 12
Assertion (A): A silicon diode allows significant current flow only after the voltage across it exceeds approximately 0.7V. | Reason (R): The reverse saturation current in a diode is significant enough to allow large current flow in reverse bias.
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 but R is true.
Correct Answer
Option C
Detailed Explanation
The assertion is true since a silicon diode has a threshold voltage of approximately 0.7V for significant forward current flow. However, the reason is false as the reverse saturation current is very small and does not allow large current flow in reverse bias.
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