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To determine the total electrical resistance between points A and B in this circuit, we’ll analyze each section of the circuit and calculate any additional resistances not directly provided.

### Steps to Solve:

1. **Determine the resistance of the tungsten and copper wires using the resistivity formula**:
   \[
   R = \rho \frac{L}{A}
   \]
   where:
   - \( \rho \) is the resistivity of the material,
   - \( L \) is the length of the wire,
   - \( A \) is the cross-sectional area.

   The resistivity of tungsten and copper at the given temperatures will be needed.

2. **Add up the resistances in series and parallel**:
   - Combine resistors based on their configurations in the circuit.

Would you like me to look up typical resistivity values for tungsten and copper, or proceed with the analysis assuming known resistivity constants?

Determine the electrical resistance between points A and B in the given circuit, which includes tungsten and copper wires and resistors in series and parallel.

Step-by-step guide to determine the electrical resistance between points A and B in a circuit containing tungsten and copper wires, as well as resistors in series and parallel. Includes the resistivity formula and details on calculating resistance for various circuit configurations.

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