Complete the sentence by choosing the correct word given in the brackets.
A — (generator/transformer) is a source of electricity that generates large amount of elec tricity in a power house.

Explanation

To complete the sentence correctly, we need to understand the roles of a generator and a transformer in the context of electricity generation.

1. **Identify the Context**: The sentence refers to a source of electricity that generates a large amount of electricity in a powerhouse.

2. **Understand the Terms**:
- **Generator**: A device that converts mechanical energy into electrical energy. It produces electricity in large quantities, especially in powerhouses.
- **Transformer**: A device that changes the voltage of electricity (either increasing or decreasing it) but does not generate electricity itself.

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