Which of the following represents forward biase diode?

Options

A.
B.
C.
D.

Answer

To determine which of the following represents a forward-biased diode, we need to understand the concept of forward bias in a diode.

### Step-by-Step Solution:

1. **Understanding Forward Bias**: A diode is said to be in forward bias when the voltage at the anode (end A) is greater than the voltage at the cathode (end B). Mathematically, this condition can be expressed as:
\[ V_A > V_B \]
where \( V_A \) is the voltage at the anode and \( V_B \) is the voltage at the cathode.

2. **Analyzing the Options**: We need to evaluate each option provided to see which one satisfies the forward bias condition.

- **Option A**:
- \( V_A = 3V \)
- \( V_B = 5V \)
- Here, \( V_A < V_B \) (3V < 5V), so this option does not represent a forward-biased diode.

- **Option B**:
- \( V_A = 0V \)
- \( V_B = -2V \)
- Here, \( V_A > V_B \) (0V > -2V), so this option satisfies the forward bias condition.

- **Option C**: (Assuming hypothetical values)
- Let's say \( V_A = 1V \) and \( V_B = 1V \)
- Here, \( V_A = V_B \) (1V = 1V), so this does not satisfy the forward bias condition.

- **Option D**: (Assuming hypothetical values)
- Let's say \( V_A = -1V \) and \( V_B = 0V \)
- Here, \( V_A < V_B \) (-1V < 0V), so this option does not represent a forward-biased diode.

3. **Conclusion**: After analyzing all the options, we find that only **Option B** satisfies the condition for a forward-biased diode.

### Final Answer:
**Option B** represents a forward-biased diode.

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