Practice - Switches
Practice Questions
Test your understanding with targeted questions
What is the function of a switch in an electrical circuit?
💡 Hint: Think about how you control lights.
What happens when a switch is open?
💡 Hint: Consider if the lights turn on or off.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What happens to the flow of current when a switch is closed?
💡 Hint: Think about the 'on' state of a switch.
True or False: An open circuit has infinite resistance.
💡 Hint: Consider what happens when a circuit is interrupted.
1 more question available
Challenge Problems
Push your limits with advanced challenges
In a circuit with a 24 V battery and a switch that has a contact resistance of 0.03 Ω, calculate the current flowing through the switch if a 3 A current is flowing through the circuit. How much voltage drop occurs across the switch?
💡 Hint: Remember to use the voltage drop formula (V = I × R).
Design a safety feature for a circuit using switches to prevent overload. Describe how to ensure that contact resistance remains low and how to prevent degradation.
💡 Hint: Consider the operating conditions and materials involved.
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Reference links
Supplementary resources to enhance your learning experience.