With reference to a semi-conductor diode, what is meant by:
Forward bias

Explanation

### Step-by-Step Solution:

1. **Definition of Forward Bias**:
- Forward bias in a semiconductor diode refers to the condition when the p-type material is connected to the positive terminal of a power source (battery), and the n-type material is connected to the negative terminal of the power source.

2. **Condition for Forward Bias**:
- For a diode to be in forward bias, the following conditions must be met:
- The p-type semiconductor (which has an abundance of holes) must be connected to the positive terminal of the battery.
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