The electrical resistance to the diffusion current in the depletion layer in a p-n junction is large due to the presence of
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → strong electric field
The diffusion current in the depletion region faces high resistance because the depletion region has very few free charge carriers and is dominated by immobile ions, creating a strong internal electric field that opposes carrier motion.
Final Answer: strong electric field