Question

For a P-N junction diode

• A. Forward current is in mA and reverse current is in $\mu$A
• B. Forward current is in $\mu$A and reverse current is in mA
• C. Both forward and reverse currents are in $\mu$A
• D. Both forward and reverse currents are in mA
• E. No current flows in any direction

Hint:

Forward bias $\Rightarrow$ large current, Reverse bias $\Rightarrow$ very small current.

Answer 1

The Correct Option is A

Concept:

• Forward bias: large current flows
• Reverse bias: very small leakage current

Step 1: Forward bias.
Current is significant $\Rightarrow$ mA range.

Step 2: Reverse bias.
Only leakage current flows $\Rightarrow$ $\mu$A range.