🔍 Key Concepts

• Function of a commutator in a DC generator • How brushes interact with the rotating armature to take off current • Difference between parts that control magnetic field vs parts that rectify (convert) current

💭 Think About

• Which components actually touch the rotating armature conductors to take power out of the machine? • Which parts are specifically designed to change the direction of current in the external circuit so that it becomes DC, even though the armature voltage is alternating? • Look at each choice and ask: does this pair of components mainly deal with mechanical rectification of current, or with field/magnetic control?

✅ Before You Answer

• Identify which option includes the sliding contacts that carry current from the rotating part to the stationary circuit. • Identify which option contains the segmented copper ring that reverses connections each half turn. • Eliminate any options that describe components whose main job is field excitation or flux shaping, not current conversion.