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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the time constant for an RL circuit with L = 100 mH and R = 20Ω?
💡 Hint: Use the formula τ = L/R.
Question 2
Easy
How long does it take for the current in an RL circuit to reach 63.2% of its final value?
💡 Hint: Recall the definition of time constant.
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 time constant for an RL circuit?
- L/R
- R×C
- R/L
💡 Hint: Think about how L and R relate in a first-order circuit.
Question 2
True or False: It takes five time constants for a current in an RL circuit to reach steady state.
- True
- False
💡 Hint: Recall the general rule applied in time-domain analysis.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Demonstrate the transition of current in an RL circuit when power is suddenly applied and removed by deriving equations and drawing graphs for both step and natural responses.
💡 Hint: Focus on how the equations showcase the behavior during power applications.
Question 2
If an RC circuit has a resistor of 10 kΩ and a capacitor of 500μF, calculate the voltage across the capacitor after 3 time constants when charged from a 12 V source.
💡 Hint: Calculate the time constant first and then use the step response equation.
Challenge and get performance evaluation