Which of the following statements is true if...

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Question 1 of 205eccefa3bacbc34ba4d47f05

Which of the following statements is true if a 100 watt lamp and a 75 watt lamp each rated at 100 volts are connected in parallel across a 100 volt power supply?

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5eccefa3bacbc34ba4d47f05

Which of the following statements is true if a 100 watt lamp and a 75 watt lamp each rated at 100 volts are connected in parallel across a 100 volt power supply?

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🔍 Key Concepts

• Parallel circuits and how voltage behaves across each branch • Relationship between power (watts), voltage, current, and resistance: P = V × I and V = I × R • How lamp wattage rating at a given voltage relates to its resistance

💭 Think About

• First, assume each lamp really operates at 100 V. Using P = V × I, compare the current each lamp would draw at the rated voltage—does the higher-wattage lamp take more or less current? • From P = V^2 / R, reason out which lamp must have the higher resistance at the same voltage: the higher-wattage or lower-wattage one? • In a parallel circuit, what is the same for all branches, and what can be different from branch to branch (voltage vs current)?

✅ Before You Answer

• Compute or compare current using P = V × I (or I = P / V) for both lamps at 100 V before deciding on any current-related choice. • Use P = V^2 / R (or R = V^2 / P) to decide which lamp’s resistance is greater at the same 100 V. • Confirm what quantity is always the same across parallel components (voltage, not current) to help rule out incorrect options.

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Question 1 of 205eccefa3bacbc34ba4d47f05

Which of the following statements is true if a 100 watt lamp and a 75 watt lamp each rated at 100 volts are connected in parallel across a 100 volt power supply?

Back

Question 1 of 20

5eccefa3bacbc34ba4d47f05

Which of the following statements is true if a 100 watt lamp and a 75 watt lamp each rated at 100 volts are connected in parallel across a 100 volt power supply?

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