Question

In a semiconductor diode, the barrier potential offers opposition to:

• A. holes in P-region only
• B. free electrons in N-region only
• C. majority carriers in both regions
• D. minority carriers in both regions

Hint:

Barrier potential blocks majority carriers, not minority carriers.

Answer 1

The Correct Option is C

Step 1: Barrier potential nature. Barrier potential opposes diffusion of majority carriers.
Step 2: Conclusion. It affects both electrons and holes which are majority carriers.