Question

In a P-N junction diode, which terminal is connected to the P-side during forward biasing?

• A. Negative terminal
• B. Positive terminal
• C. Ground
• D. Neutral terminal

Hint:

Remember: Forward bias → P to Positive, N to Negative.

Answer 1

The Correct Option is B

Concept: Forward biasing of a P-N junction diode reduces the barrier potential and allows current to flow.
Step 1: Understanding diode structure.
A P-N junction consists of a P-type semiconductor (holes as majority carriers) and an N-type semiconductor (electrons as majority carriers).
Step 2: Forward bias condition.
In forward bias, the external voltage is applied such that it reduces the depletion region.
Step 3: Connection of terminals.
The P-side is connected to the positive terminal, and the N-side is connected to the negative terminal.
Step 4: Evaluating the options.

• Negative terminal $\rightarrow$ Connected to N-side (incorrect)
• Positive terminal $\rightarrow$ Connected to P-side (correct)
• Ground $\rightarrow$ Not specific (incorrect)
• Neutral terminal $\rightarrow$ Not applicable (incorrect)

Step 5: Conclusion.
Thus, the P-side is connected to the positive terminal during forward biasing.