🔍 Key Concepts

• DC motor brush rigging components and their functions • Purpose of connections between brushes and the external circuit • Difference between mechanical parts (springs/holders) and electrical conductors

💭 Think About

• Which part of the brush rigging actually carries current from the moving brush to the stationary wiring? • Which items in the choices are primarily mechanical supports or tension devices rather than conductors? • On an exam diagram of a DC motor, what would need to be flexible yet still conduct electricity from the brush?

✅ Before You Answer

• Identify which option clearly functions as an electrical conductor between the brush and the circuit • Eliminate options that are mainly mechanical positioning or pressure devices • Think about which item must be flexible to allow brush movement while maintaining electrical connection