If the length of a wire is halved and the...

Question 1 / 205eccefa3bacbc34ba4d47eaa

Question 1 of 205eccefa3bacbc34ba4d47eaa

If the length of a wire is halved and the cross-sectional area is doubled, what will be the resistance of the wire as compared to the original wire?

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Question 1 of 20

5eccefa3bacbc34ba4d47eaa

If the length of a wire is halved and the cross-sectional area is doubled, what will be the resistance of the wire as compared to the original wire?

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🔍 Key Concepts

• Relationship between resistance, length, and cross-sectional area of a conductor • How changing length and area together affects overall resistance • Proportionality: what happens when one variable is halved and another is doubled

💭 Think About

• Write the basic formula for resistance in terms of resistivity, length, and cross-sectional area, then see how each change (length and area) affects it • Treat the original resistance as R. Express the new resistance in terms of R using the changes given • Carefully combine both changes (length and area) rather than thinking about them separately

✅ Before You Answer

• Use the correct resistance formula and identify which quantities are changing and which stay constant (like resistivity and material • Check whether resistance is directly or inversely proportional to length and area • After substituting the new length and new area, simplify step-by-step and compare the final expression to the original resistance R

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Question 1 of 20

If the length of a wire is halved and the cross-sectional area is doubled, what will be the resistance of the wire as compared to the original wire?

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doubled

quadrupled

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Question 1 / 205eccefa3bacbc34ba4d47eaa

Question 1 of 205eccefa3bacbc34ba4d47eaa

If the length of a wire is halved and the cross-sectional area is doubled, what will be the resistance of the wire as compared to the original wire?

Back

Question 1 of 20

5eccefa3bacbc34ba4d47eaa

If the length of a wire is halved and the cross-sectional area is doubled, what will be the resistance of the wire as compared to the original wire?

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