*Question G7A01:
What is the function of a power supply bleeder resistor?*  

*Correct Answer is  B: It discharges the filter capacitors when power is removed*  

### AI Response: (may contain errors)  

The correct answer to the question about the function of a power supply bleeder resistor is:

**B: It discharges the filter capacitors when power is removed.**

### Explanation of the Correct Answer:
- **Bleeder Resistor Function**: A bleeder resistor is connected across the output of a power supply, specifically across the filter capacitors. Its primary function is to provide a path for the stored charge in the capacitors to safely discharge when the power supply is turned off. This helps to prevent electric shock hazards from high voltage stored in the capacitors.

### Why the Other Choices are Incorrect:
- **A: It acts as a fuse for excess voltage**  
  - A bleeder resistor does not function as a fuse. Fuses are designed to break the circuit in case of excessive current, while a bleeder resistor simply allows for the safe discharge of capacitors.

- **C: It removes shock hazards from the induction coils**  
  - Induction coils are not directly related to the function of a bleeder resistor. The bleeder resistor's role is specifically to discharge capacitors, not to mitigate shock hazards from induction coils.

- **D: It eliminates ground loop current**  
  - Ground loop currents are typically addressed through proper grounding techniques and isolation methods, not by using a bleeder resistor. The bleeder resistor does not eliminate ground loops; it only discharges capacitors.

### Useful Rules of Thumb:
- **Capacitor Discharge**: Always assume that capacitors can hold a charge even after power is removed. A bleeder resistor helps ensure that this charge is dissipated safely.
- **Value of Bleeder Resistor**: The value of a bleeder resistor is typically chosen to allow a slow discharge of the capacitor, often in the range of tens to hundreds of kilohms, depending on the application and capacitor size.

This understanding of the bleeder resistor's function is crucial for ensuring safety in power supply circuits.