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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Calculate the total current if 4 sockets draw 10 A each.
π‘ Hint: Multiply the number of sockets by the current each one draws.
Question 2
Easy
What is the voltage drop across a 10 m wire with a resistance of 0.0175 Ξ©/m carrying 5 A?
π‘ Hint: Use the formula V = I Γ R.
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 current drawn by a 150 W HPS lamp at 230 V?
- 0.652 A
- 0.217 A
- 0.5 A
π‘ Hint: Think about how power and voltage are related.
Question 2
True or False: Voltage drop is not a significant factor in household wiring.
- True
- False
π‘ Hint: Consider how energy is lost over distances.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
An apartment complex has 12 sockets, each drawing 10 A on a 240 V system. If only three sockets are used at a time, calculate the effective current load and discuss any safety implications.
π‘ Hint: Consider the worst-case scenario of full usage.
Question 2
Design a streetlight system utilizing both HPS and LEDs. Analyze the cost-effectiveness and energy savings in a scenario where 10 HPS are replaced with LEDs.
π‘ Hint: Use energy consumption calculations for both lamp types.
Challenge and get performance evaluation