Halving the cross-sectional area of a...

Question 1 / 20XRMIjk0bpZ01tvoZptF1

Question 1 of 20XRMIjk0bpZ01tvoZptF1

Halving the cross-sectional area of a conductor will:

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Question 1 of 20

XRMIjk0bpZ01tvoZptF1

Halving the cross-sectional area of a conductor will:

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🔍 Key Concepts

• Relationship between electrical resistance, length, and cross-sectional area of a conductor • How changing area by a factor affects resistance (inverse proportion) • Analogy to water flow in pipes (wider vs narrower pipe)

💭 Think About

• Is resistance directly or inversely proportional to the cross-sectional area of a conductor? • If you cut the area in half, by what factor does the resistance change, assuming length and material stay the same? • Which formula connects resistance, resistivity, length, and area?

✅ Before You Answer

• Recall and write out the formula R = ρ·L / A and identify what each symbol means • Confirm whether area is in the numerator or denominator of that formula • Think about what happens to the resistance if the denominator is cut in half while the numerator stays constant

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Question 1 of 20

Halving the cross-sectional area of a conductor will:

Not affect the resistance.

Quarter the resistance.

Double the resistance.

Halve the resistance.

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