Practice - Topics
Practice Questions
Test your understanding with targeted questions
What is the unit of charge?
💡 Hint: Think about what charge is and its definition.
Define current in terms of flow.
💡 Hint: Consider how current is related to charge per time.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the unit of voltage?
💡 Hint: Think about how you measure electrical potential.
True or False: According to KCL, the total current entering a junction must equal the total current leaving the junction.
💡 Hint: Consider the idea of balance for currents at a node.
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Challenge Problems
Push your limits with advanced challenges
Consider a circuit where 2A enters a junction and 1.5A exits through one branch. If another branch has a total resistance of 10Ω, find the current flowing through that branch.
💡 Hint: Apply KCL to balance the currents first.
An RC circuit consists of a 1µF capacitor charged to 10V. Calculate the time constant if a 1kΩ resistor discharges it. What is the voltage after 2 time constants?
💡 Hint: Use the discharging formula for a capacitor.
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Reference links
Supplementary resources to enhance your learning experience.