3.4 - OHM'S LAW
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Practice Questions
Test your understanding with targeted questions
What is Ohm's Law?
💡 Hint: Think about the relationship between current and voltage.
What unit is used for measuring resistance?
💡 Hint: What symbol represents resistance?
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the formula for Ohm's Law?
💡 Hint: It relates current, voltage, and resistance.
True or False: Resistance decreases with increasing temperature in most materials.
💡 Hint: Consider how temperature affects atoms' movement.
1 more question available
Challenge Problems
Push your limits with advanced challenges
A wire of 4 m length has a cross-sectional area of 0.5 mm² and a resistivity of 1.68 × 10⁻⁸ Ω·m. Calculate the resistance and discuss its implications.
💡 Hint: Use the formula for resistance based on resistivity.
If an electric circuit has a voltage of 12V and a total resistance of 3Ω, what is the current flowing through the circuit?
💡 Hint: Apply Ohm's Law straightforwardly.
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