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NEET2026PhysicsSemiconductorsActual

Two statements are given below : A. When the forward bias voltage across a p-n junction diode increases above a certain threshold voltage, the diode current increases significantly. B. This current is called reverse saturation current. Choose the correct answer from the options given below :

Options

  1. ABoth Statements A and B are true
  2. BStatement A is true, but Statement B is false
  3. CBoth Statements A and B are false
  4. DStatement A is false, but Statement B is true

Correct answer

B. Statement A is true, but Statement B is false

Step-by-step solution

Statement A describes the behavior of a p-n junction diode under forward bias. When the applied voltage exceeds the threshold voltage (or cut-in voltage), the potential barrier is overcome, and the forward current increases exponentially. Thus, Statement A is true. Statement B claims this current is the reverse saturation current. This is incorrect because the current flowing under forward bias is the forward current. Reverse saturation current is a very small current that flows under reverse bias conditions due to

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