🔍 Key Concepts

• Count how many diodes are in the bridge and how they are arranged (top rail vs bottom rail). • Look at the transformer secondary: how many phases are coming in (A, B, C and neutral N)? • Compare the output waveform labeled C to the original three AC phase waveforms labeled B and think about whether both the positive and negative halves of each phase are used.

💭 Think About

• Does the circuit use one phase or three phases from the transformer? What detail in the drawing tells you that? • Is the load current supplied during only half of each AC cycle or during both halves? How does the number and orientation of diodes affect this? • If each phase uses two diodes (one for the positive half and one for the negative half), which type of rectifier does that suggest?

✅ Before You Answer

• Verify number of input phases by looking for labeled phase windings (A, B, C). • Verify number of diodes and that they are arranged in two groups feeding the load from opposite sides (a bridge). • Verify whether the output waveform shows pulses for every half-cycle from all phases (indicating full‑wave) or only for one half of each cycle (indicating half‑wave).