If a circuit has resistances of 5, 10, and...

Question 1 / 205eccefa3bacbc34ba4d47f07

Question 1 of 205eccefa3bacbc34ba4d47f07

If a circuit has resistances of 5, 10, and 20 ohms connected in parallel, what is the combined total resistance of the circuit?

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Question 1 of 20

5eccefa3bacbc34ba4d47f07

If a circuit has resistances of 5, 10, and 20 ohms connected in parallel, what is the combined total resistance of the circuit?

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🔍 Key Concepts

• Parallel vs. series resistance formulas • How to add reciprocals of resistance for parallel circuits • Checking if the total resistance in parallel is less than the smallest individual resistor

💭 Think About

• Write the formula for total resistance when resistors are connected in parallel and plug in 5, 10, and 20 ohms step by step. • First calculate the sum of the reciprocals of the three resistances, then take the reciprocal of that sum. • Compare your final value to each of the answer choices and ask: is this result smaller than the smallest resistor (5 ohms)?

✅ Before You Answer

• Confirm you used the parallel resistance formula and not the series formula. • Double-check your fraction or decimal calculations when adding the reciprocals. • Verify that your final result is less than 5 ohms, since total resistance in parallel must be less than the smallest branch resistance.

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Question 1 of 20

If a circuit has resistances of 5, 10, and 20 ohms connected in parallel, what is the combined total resistance of the circuit?

1.5 ohms

2.9 ohms

17.5 ohms

35.0 ohms

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Question 1 / 205eccefa3bacbc34ba4d47f07

Question 1 of 205eccefa3bacbc34ba4d47f07

If a circuit has resistances of 5, 10, and 20 ohms connected in parallel, what is the combined total resistance of the circuit?

Back

Question 1 of 20

5eccefa3bacbc34ba4d47f07

If a circuit has resistances of 5, 10, and 20 ohms connected in parallel, what is the combined total resistance of the circuit?

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