3.3 - Resistance in Electric Circuits
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Practice Questions
Test your understanding with targeted questions
What is the unit of resistance?
💡 Hint: It’s named after a German physicist.
Name one factor that affects resistance.
💡 Hint: Think about what makes it easier or harder for electrons to flow.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is resistance?
💡 Hint: It sounds like a barrier to electricity.
True or False: Resistance decreases with an increase in conductor length.
💡 Hint: Consider the travel distance.
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Challenge Problems
Push your limits with advanced challenges
A 50-meter long wire of aluminium (resistivity \(2.65 × 10^{-8} \Omega.m\)) has a cross-sectional area of 2 mm². Calculate the resistance of the wire.
💡 Hint: Make sure units are consistent before calculating.
Describe how you would set up an experiment to measure the resistance of different wire materials.
💡 Hint: Consider safety measures and equipment needed.
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