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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is Ohm's Law?
π‘ Hint: Think about the relationship between current and voltage.
Question 2
Easy
What unit is used for measuring resistance?
π‘ Hint: What symbol represents resistance?
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the formula for Ohm's Law?
- I = VR
- V = IR
- R = V/I
π‘ Hint: It relates current, voltage, and resistance.
Question 2
True or False: Resistance decreases with increasing temperature in most materials.
- True
- False
π‘ Hint: Consider how temperature affects atoms' movement.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A wire of 4 m length has a cross-sectional area of 0.5 mmΒ² and a resistivity of 1.68 Γ 10β»βΈ Ω·m. Calculate the resistance and discuss its implications.
π‘ Hint: Use the formula for resistance based on resistivity.
Question 2
If an electric circuit has a voltage of 12V and a total resistance of 3Ξ©, what is the current flowing through the circuit?
π‘ Hint: Apply Ohm's Law straightforwardly.
Challenge and get performance evaluation