Which one of the following represents forward bias diode?

- A1
- B2
- C3
- D4
Solution & Step-by-step Explanation
A diode is forward biased if the potential at the -side is higher than the potential at the -side ().Checking options:(1) (Reverse)(2) (Forward)(3) Standard key usually gives specific layouts. Based on the logic, any where is forward.(Note: Source diagram for NEET 2017 Q22 shows specific circuit potentials; usually option with on N-side and positive on P-side or higher negative on N-side).Wait, re-checking standard 2017 A-code: Option (2) has and . Since , it is forward biased. Option (1) (P) and (N) is reverse.