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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the unit of voltage?
💡 Hint: Think of electrical pressure.
Question 2
Easy
Define current.
💡 Hint: What moves in an electric circuit?
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 unit of measure for resistance?
- Volts
- Amperes
- Ohms
💡 Hint: Think of what 'limits' the current.
Question 2
Ohm's law states that V = I × R. What does 'R' stand for?
- Voltage
- Resistance
- Current
💡 Hint: It’s what 'resists' the flow of current.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design a basic circuit using an LED, resistors, and a battery. Calculate the appropriate resistance needed to prevent the LED from burning out when powered by a 9V battery.
💡 Hint: Focus on the voltage drop across the LED.
Question 2
A circuit has a current of 3A flowing through a resistor of 6 ohms. Calculate the voltage across the resistor and verify if this is a safe range for common components.
💡 Hint: Remember to check component ratings, especially capacitors and LEDs.
Challenge and get performance evaluation