Which lamps would be lit in the circuit...

Question 1 / 20wOQRp8su1YhMvOXrWvVM

Question 1 of 20wOQRp8su1YhMvOXrWvVM

Which lamps would be lit in the circuit shown in Figure 3D8?

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Question 1 of 20

wOQRp8su1YhMvOXrWvVM

Which lamps would be lit in the circuit shown in Figure 3D8?

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🔍 Key Concepts

• Series vs. parallel circuits — how current finds a path through switches and lamps • Open vs. closed switches — an open switch is like a broken wire; a closed switch completes the path • Common return/ground — all lit lamps must have a complete path from positive to negative

💭 Think About

• Trace the path of current from the power source: for each branch, ask yourself, ‘Is there an unbroken path through switches and lamps back to the return?’ • Look carefully at which lamps are in series with a switch: if any switch in that series path is open, will current reach that lamp? • Compare the options: which answer choices include any lamp that clearly has a broken path at either the supply or the return side?

✅ Before You Answer

• For each lamp number, verify whether it has a complete path from the positive side of the source to the negative side with no open switches in between • Check if any lamp in a choice is connected through more than one open switch — if so, that choice is likely wrong • Confirm that lamps that are clearly bypassed by a closed parallel path (or isolated by an open switch) are not counted as lit in your final choice

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Question 1 of 20

Which lamps would be lit in the circuit shown in Figure 3D8?

2, 3, 4, 5 and 6.

5, 6, 8 and 9.

2, 3, 4, 7 and 8.

1, 3, 5, 7 and 8.

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Question 1 / 20wOQRp8su1YhMvOXrWvVM

Question 1 of 20wOQRp8su1YhMvOXrWvVM

Which lamps would be lit in the circuit shown in Figure 3D8?

Back

Question 1 of 20

wOQRp8su1YhMvOXrWvVM

Which lamps would be lit in the circuit shown in Figure 3D8?

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

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed