What job do the brushes perform in an AC generator?

Explanation

### Step-by-Step Solution:

1. **Understanding the AC Generator**: An AC generator converts mechanical energy into electrical energy using electromagnetic induction. It consists of a rotor (the rotating part) and an armature (the coil through which current is induced).

2. **Role of Brushes**: The brushes in an AC generator are stationary conductive components that maintain electrical contact with the rotating slip rings attached to the rotor.

3. **Current Conduction**: As the rotor spins, the slip rings rotate with it. The brushes slide over the slip rings, allowing them to continuously conduct electric current from the slip rings to the external circuit.

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