4.3 - Uncertainty Propagation
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Practice Questions
Test your understanding with targeted questions
What is the definition of uncertainty in measurements?
💡 Hint: Think about what could affect a measurement.
Write the formula for voltage based on current and resistance.
💡 Hint: Recall Ohm's Law.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does \( \Delta V \) represent?
💡 Hint: Think about what uncertainty means.
True or False: The formula for uncertainty propagation can quantify the uncertainty in derived measurements.
💡 Hint: Recall the purpose of the propagation formula.
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Challenge Problems
Push your limits with advanced challenges
In an experiment, the current is measured as 0.1±0.002 A and the resistance is found to be 150±3 Ω. Calculate the voltage and uncertainty in the voltage.
💡 Hint: Make sure to calculate each part of the formula separately.
If you know the resistive losses in your circuit components lead to the following: 220Ω at a tolerance of ±0.5Ω and current flow is at 2.5±0.01A. Determine the uncertainty in voltage and the actual voltage.
💡 Hint: Convert everything to decimals carefully and use the right propagation formula.
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