Which of the referenced wave shapes would...

Question 1 of 270705eccefa5bacbc34ba4d4870e

Which of the referenced wave shapes would appear across test points 1 and 2 (TP1 and TP2) referring to the circuit shown in the illustration? See illustration EL-0085.

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Question 1 of 27070

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Which of the referenced wave shapes would appear across test points 1 and 2 (TP1 and TP2) referring to the circuit shown in the illustration? See illustration EL-0085.

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🔍 Key Concepts

• Location of TP1 and TP2 in relation to transformer T1 and the rectifier diodes D1/D2 • Difference between a pure AC sine wave and rectified DC (half‑wave and full‑wave) waveforms • How the presence of diodes, inductors, and capacitors changes the shape of a waveform compared to the source

💭 Think About

• Look at where TP1 and TP2 are connected: has the signal passed through any diodes or filters yet, or is it still at the source side of the circuit? • Compare each choice (E, F, H, I) and decide which ones show rectified DC with a DC offset, and which one shows an unmodified AC waveform crossing the zero line. • Think about what you would normally see across the primary of a transformer that is fed from an AC supply.

✅ Before You Answer

• Confirm on the drawing that TP1 and TP2 are on the primary side of T1, before any diodes. • Identify which option shows a sine wave that goes both positive and negative around zero volts, with no DC offset. • Eliminate any waveforms that look like pulsating DC (only positive lobes) or filtered DC with ripple, since those occur after rectification, not at the primary.