Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: A diode under reverse-biased condition provides very small current which is nearly independent of voltage until a critical limit at which the current increases drastically. Reason R: B…

Question

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: A diode under reverse-biased condition provides very small current which is nearly independent of voltage until a critical limit at which the current increases drastically. Reason R: Below the critical voltage limit, only majority charge carriers flow which increases drastically above critical voltage. Choose the correct answer from the options given below

Accepted Answer

(3) A is true but R is false. In reverse bias the barrier stops majority carriers. Only minority carriers drift across, and their number is fixed by temperature, so the current is tiny and nearly independent of voltage. A is true. At the breakdown voltage the current rises sharply (Zener or avalanche). R says majority carriers carry the reverse current, which is wrong. R is false.

Step-by-step solution

Why the other options are wrong