What is the functional purpose of component...

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Question 1 of 205eccefa4bacbc34ba4d48449

What is the functional purpose of component "3" of the circuit shown in figure "B" of the illustration? See illustration EL-0081.

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5eccefa4bacbc34ba4d48449

What is the functional purpose of component "3" of the circuit shown in figure "B" of the illustration? See illustration EL-0081.

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🔍 Key Concepts

• Identify what a ballast/inductor symbol looks like in a fluorescent lighting circuit and where it is normally placed (series or parallel with the tube). • Note that component 6 in figure B is already labeled "PFC" (power factor correction); compare that to the answer options that mention power factor or interference suppression. • Recall the main functions of a fluorescent lamp ballast: what it does at the instant of starting and what it does during normal running.

💭 Think About

• Is component 3 drawn in series with the fluorescent tube, or in parallel with the supply? How does that affect which tasks it can perform? • If one part is already labeled for power factor correction, which answer choice is now unlikely to match component 3? • Which device in a traditional fluorescent fixture is responsible for limiting current through the tube after it strikes, and how is that represented in a schematic?

✅ Before You Answer

• Verify whether component 3 is an inductor/coil symbol (typical ballast) or a capacitor symbol. • Confirm that power factor correction (PFC) in the diagram is associated with component 6, not 3. • Check which answer choice describes both the starting (high voltage surge) and running (current limiting) functions of a series ballast.

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Question 1 of 205eccefa4bacbc34ba4d48449

What is the functional purpose of component "3" of the circuit shown in figure "B" of the illustration? See illustration EL-0081.

Back

Question 1 of 20

5eccefa4bacbc34ba4d48449

What is the functional purpose of component "3" of the circuit shown in figure "B" of the illustration? See illustration EL-0081.

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

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